74 lines
1.8 KiB
Java
74 lines
1.8 KiB
Java
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Horoscope
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import javax.swing.*;
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import java.awt.event.*;
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import java.awt.*;
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public class Factorial extends JFrame
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{
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private JTextField txtNum;
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private JLabel lblNum, lblRes;
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private JButton btnCompute;
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public static int ComputeFactorial(int number)
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{
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int n = number-1;
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do
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{
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number = number*n;
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n--;
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}while(n>=1);
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return number;
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}
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public Factorial()
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{
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super("GUI Factorial");
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Container c = getContentPane();
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c.setLayout(new FlowLayout());
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lblNum = new JLabel("Enter an integer: ");
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txtNum = new JTextField(10);
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lblRes = new JLabel();
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btnCompute = new JButton("Compute");
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btnCompute.addActionListener
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(
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new ActionListener()
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{
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public void actionPerformed(ActionEvent e)
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{
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String str = txtNum.getText();
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int tmp = Integer.parseInt(str);
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tmp = ComputeFactorial(tmp);
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lblRes.setText("The factorial of "+str+" is "+tmp);
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}
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}
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);
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c.add(lblNum);
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c.add(txtNum);
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c.add(btnCompute);
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c.add(lblRes);
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setSize(200,150);
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show();
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}
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public static void main(String args[])
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{
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Factorial app = new Factorial();
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app.setResizable(false);
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app.setLocation(400,200);
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app.addWindowListener
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(
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new WindowAdapter()
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{
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public void windowClosing(WindowEvent e)
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{
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System.exit(0);
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}
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}
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);
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}
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}
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