635 lines
17 KiB
Java
635 lines
17 KiB
Java
Calculator with both Standard and Scientific Mode
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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import javax.swing.event.*;
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public class calculator extends JFrame implements ActionListener
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{
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JTextField jtx;
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double temp,temp1,result,a;
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static double m1,m2;
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int k=1,x=0,y=0,z=0;
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char ch;
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JButton
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one,two,three,four,five,six,seven,eight,nine,zero,clr,pow2,pow3,exp;
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JButton
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plus,min,div,lg,rec,mul,eq,plmi,poin,mr,mc,mp,mm,sqrt,sin,cos,tan;
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JMenuBar bar;
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JMenu view;
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JMenuItem exit;
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JRadioButtonMenuItem standard,scientific;
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JSeparator jp;
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ButtonGroup bg;
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Container cont;
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JPanel textPanel,syntpanel,buttonpanel;
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calculator()
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{
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cont=getContentPane();
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cont.setLayout(new BorderLayout());
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JPanel textpanel=new JPanel();
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Font font=new Font("Arial",Font.PLAIN,18);
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jtx=new JTextField(25);
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jtx.setFont(font);
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jtx.setHorizontalAlignment(SwingConstants.RIGHT);
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jtx.addKeyListener(new KeyAdapter()
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{
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public void keyTyped(KeyEvent keyevent)
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{
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char c=keyevent.getKeyChar();
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if(c>='0' && c<='9')
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{
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}
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else
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{
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keyevent.consume();
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}
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}
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});
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textpanel.add(jtx);
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buttonpanel=new JPanel();
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buttonpanel.setLayout(new GridLayout(5,4,2,2));
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boolean t=true;
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syntpanel=new JPanel();
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syntpanel.setLayout(new GridLayout(5,1));
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bar=new JMenuBar();
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view=new JMenu("View");
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standard =new JRadioButtonMenuItem("Standard",true);
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standard.setMnemonic('S');
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standard.addItemListener(new radiohandler());
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scientific =new JRadioButtonMenuItem("Sceintific");
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standard.setMnemonic('c');
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scientific.addItemListener(new radiohandler());
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jp=new JSeparator();
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exit=new JMenuItem("Exit");
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standard.setMnemonic('E');
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exit.addActionListener(this);
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bg=new ButtonGroup();
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bg.add(standard);
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bg.add(scientific);
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view.add(standard);
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view.add(scientific);
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view.add(jp);
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view.add(exit);
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bar.add(view);
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setJMenuBar(bar);
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mr=new JButton("MR");
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buttonpanel.add(mr);
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mr.addActionListener(this);
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seven=new JButton("7");
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buttonpanel.add(seven);
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seven.addActionListener(this);
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eight=new JButton("8");
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buttonpanel.add(eight);
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eight.addActionListener(this);
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nine=new JButton("9");
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buttonpanel.add(nine);
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nine.addActionListener(this);
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clr=new JButton("AC");
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buttonpanel.add(clr);
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clr.addActionListener(this);
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mc=new JButton("MC");
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buttonpanel.add(mc);
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mc.addActionListener(this);
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four=new JButton("4");
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buttonpanel.add(four);
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four.addActionListener(this);
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five=new JButton("5");
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buttonpanel.add(five);
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five.addActionListener(this);
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six=new JButton("6");
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buttonpanel.add(six);
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six.addActionListener(this);
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mul=new JButton("*");
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buttonpanel.add(mul);
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mul.addActionListener(this);
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mp=new JButton("M+");
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buttonpanel.add(mp);
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mp.addActionListener(this);
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one=new JButton("1");
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buttonpanel.add(one);
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one.addActionListener(this);
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two=new JButton("2");
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buttonpanel.add(two);
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two.addActionListener(this);
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three=new JButton("3");
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buttonpanel.add(three);
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three.addActionListener(this);
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min=new JButton("-");
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buttonpanel.add(min);
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min.addActionListener(this);
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mm=new JButton("M-");
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buttonpanel.add(mm);
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mm.addActionListener(this);
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zero=new JButton("0");
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buttonpanel.add(zero);
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zero.addActionListener(this);
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plmi=new JButton("+/-");
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buttonpanel.add(plmi);
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plmi.addActionListener(this);
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poin=new JButton(".");
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buttonpanel.add(poin);
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poin.addActionListener(this);
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plus=new JButton("+");
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buttonpanel.add(plus);
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plus.addActionListener(this);
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rec=new JButton("1/x");
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buttonpanel.add(rec);
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rec.addActionListener(this);
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sqrt=new JButton("Sqrt");
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buttonpanel.add(sqrt);
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sqrt.addActionListener(this);
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lg=new JButton("log");
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buttonpanel.add(lg);
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lg.addActionListener(this);
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div=new JButton("/");
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div.addActionListener(this);
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buttonpanel.add(div);
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eq=new JButton("=");
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buttonpanel.add(eq);
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eq.addActionListener(this);
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sin=new JButton("SIN");
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syntpanel.add(sin);
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sin.addActionListener(this);
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cos=new JButton("COS");
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syntpanel.add(cos);
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cos.addActionListener(this);
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tan=new JButton("TAN");
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syntpanel.add(tan);
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tan.addActionListener(this);
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pow2=new JButton("x^2");
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syntpanel.add(pow2);
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pow2.addActionListener(this);
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pow3=new JButton("x^3");
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syntpanel.add(pow3);
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pow3.addActionListener(this);
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exp=new JButton("Exp");
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exp.addActionListener(this);
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cont.add("Center",buttonpanel);
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cont.add("North",textpanel);
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setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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}
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class radiohandler implements ItemListener
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{
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public void itemStateChanged(ItemEvent ie)
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{
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AbstractButton button=(AbstractButton)ie.getItem();
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String label=button.getText();
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{
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if(label.equals("Standard"))
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{
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cont.remove(syntpanel);
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validate();
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}
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if(label.equals("Sceintific"))
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{
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cont.add("West",syntpanel);
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validate();
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}
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}
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}
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}
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public void actionPerformed(ActionEvent e)
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{
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String s=e.getActionCommand();
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if(s.equals("Exit"))
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{
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System.exit(0);
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}
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if(s.equals("1"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"1");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"1");
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z=0;
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}
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}
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if(s.equals("2"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"2");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"2");
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z=0;
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}
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}
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if(s.equals("3"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"3");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"3");
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z=0;
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}
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}
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if(s.equals("4"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"4");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"4");
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z=0;
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}
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}
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if(s.equals("5"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"5");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"5");
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z=0;
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}
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}
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if(s.equals("6"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"6");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"6");
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z=0;
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}
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}
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if(s.equals("7"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"7");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"7");
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z=0;
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}
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}
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if(s.equals("8"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"8");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"8");
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z=0;
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}
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}
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if(s.equals("9"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"9");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"9");
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z=0;
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}
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}
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if(s.equals("0"))
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{
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if(z==0)
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{
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jtx.setText(jtx.getText()+"0");
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}
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else
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{
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jtx.setText("");
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jtx.setText(jtx.getText()+"0");
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z=0;
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}
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}
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if(s.equals("AC"))
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{
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jtx.setText("");
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x=0;
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y=0;
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z=0;
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}
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if(s.equals("log"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.log(Double.parseDouble(jtx.getText()));
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("1/x"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=1/Double.parseDouble(jtx.getText());
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("Exp"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.exp(Double.parseDouble(jtx.getText()));
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("x^2"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.pow(Double.parseDouble(jtx.getText()),2);
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("x^3"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.pow(Double.parseDouble(jtx.getText()),3);
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("+/-"))
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{
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if(x==0)
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{
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jtx.setText("-"+jtx.getText());
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x=1;
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}
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else
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{
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jtx.setText(jtx.getText());
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}
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}
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if(s.equals("."))
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{
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if(y==0)
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{
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jtx.setText(jtx.getText()+".");
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y=1;
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}
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else
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{
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jtx.setText(jtx.getText());
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}
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}
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if(s.equals("+"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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temp=0;
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ch='+';
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}
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else
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{
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temp=Double.parseDouble(jtx.getText());
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jtx.setText("");
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ch='+';
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y=0;
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x=0;
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}
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jtx.requestFocus();
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}
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if(s.equals("-"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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temp=0;
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ch='-';
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}
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else
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{
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x=0;
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y=0;
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temp=Double.parseDouble(jtx.getText());
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jtx.setText("");
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ch='-';
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}
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jtx.requestFocus();
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}
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if(s.equals("/"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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temp=1;
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ch='/';
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}
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else
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{
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x=0;
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y=0;
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temp=Double.parseDouble(jtx.getText());
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ch='/';
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jtx.setText("");
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}
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jtx.requestFocus();
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}
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if(s.equals("*"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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temp=1;
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ch='*';
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}
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else
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{
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x=0;
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y=0;
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temp=Double.parseDouble(jtx.getText());
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ch='*';
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jtx.setText("");
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}
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jtx.requestFocus();
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}
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if(s.equals("MC"))
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{
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m1=0;
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jtx.setText("");
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}
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if(s.equals("MR"))
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{
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jtx.setText("");
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jtx.setText(jtx.getText() + m1);
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}
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if(s.equals("M+"))
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{
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if(k==1)
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{
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m1=Double.parseDouble(jtx.getText());
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k++;
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}
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else
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{
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m1+=Double.parseDouble(jtx.getText());
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jtx.setText(""+m1);
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}
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}
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if(s.equals("M-"))
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{
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if(k==1)
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{
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m1=Double.parseDouble(jtx.getText());
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k++;
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}
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else
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{
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m1-=Double.parseDouble(jtx.getText());
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jtx.setText(""+m1);
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}
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}
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if(s.equals("Sqrt"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.sqrt(Double.parseDouble(jtx.getText()));
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("SIN"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.sin(Double.parseDouble(jtx.getText()));
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("COS"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.cos(Double.parseDouble(jtx.getText()));
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("TAN"))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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a=Math.tan(Double.parseDouble(jtx.getText()));
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jtx.setText("");
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jtx.setText(jtx.getText() + a);
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}
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}
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if(s.equals("="))
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{
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if(jtx.getText().equals(""))
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{
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jtx.setText("");
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}
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else
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{
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temp1 = Double.parseDouble(jtx.getText());
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switch(ch)
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{
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case '+':
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result=temp+temp1;
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break;
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case '-':
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result=temp-temp1;
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break;
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case '/':
|
|
result=temp/temp1;
|
|
break;
|
|
case '*':
|
|
result=temp*temp1;
|
|
break;
|
|
}
|
|
jtx.setText("");
|
|
jtx.setText(jtx.getText() + result);
|
|
z=1;
|
|
}
|
|
}
|
|
jtx.requestFocus();
|
|
}
|
|
public static void main(String args[])
|
|
{
|
|
calculator n=new calculator();
|
|
n.setTitle("CALCULATOR");
|
|
n.setSize(370,250);
|
|
n.setResizable(false);
|
|
n.setVisible(true);
|
|
}
|
|
}
|