40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
package investment;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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public class InvestmentViewer1 {
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private static final int FRAME_WIDTH = 120;
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private static final int FRAME_HEIGHT = 60;
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private static final double INTEREST_RATE = 10;
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private static final double INITIAL_BALANCE = 1000;
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public static void main(String[] args) {
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JFrame frame = new JFrame();
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frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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BankAccount account = new BankAccount(INITIAL_BALANCE);
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JButton button = new JButton("Aggiungi interessi");
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frame.add(button);
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class InterestListener implements ActionListener {
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public void actionPerformed(ActionEvent event) {
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double interest = account.getBalance() * INTEREST_RATE / 100;
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account.deposit(interest);
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System.out.println("saldo: " + account.getBalance());
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}
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}
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ActionListener listener = new InterestListener();
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button.addActionListener(listener);
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frame.setVisible(true);
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}
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}
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