30 lines
823 B
Java
30 lines
823 B
Java
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Calculating compound interest
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import java.text.DecimalFormat;
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import javax.swing.JOptionPane;
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import javax.swing.JTextArea;
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public class Interest
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{
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public static void main( String args[] )
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{
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double amount, principal = 1000.0, rate = .05;
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DecimalFormat precisionTwo = new DecimalFormat( "0.00" );
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JTextArea outputTextArea = new JTextArea( 11, 20 );
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outputTextArea.append( "Year\tAmount on deposit\n" );
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for ( int year = 1; year <= 10; year++ )
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{
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amount = principal * Math.pow( 1.0 + rate, year );
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outputTextArea.append( year + "\t" +
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precisionTwo.format( amount ) + "\n" );
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}
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JOptionPane.showMessageDialog( null, outputTextArea, "Compound Interest", JOptionPane.INFORMATION_MESSAGE );
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System.exit( 0 ); // terminate the application
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}
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}
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