u7a1.java

This will simulate a bank account and utilize different techniques.

//

import javax.swing.JApplet;
import javax.swing.JTextArea;
import java.awt.Container;
import java.awt.Font;

public class U7A1 extends JApplet
{
	public void init()
	{
		String result ="Account Information\n-------------------\n\n";

		BankAccount x = new BankAccount();
		int xacc = x.getAccount();
		BankAccount y = new BankAccount(1500);
		int yacc = y.getAccount();

		result+="Initial Balance for account "+ xacc +" = $ "+ String.format("%.2f",x.getBalance()) +"\n";
		result+="Initial Balance for account "+ yacc +" = $ "+ String.format("%.2f",y.getBalance()) +"\n";

		result +="\n";

		result+=x.deposit(300) + "\n" + y.deposit(200)+"\n";
		result+=x.withdraw(250) + "\n" + y.withdraw(125)+"\n";

		double xinterest = x.calcInterest();
		double yinterest = y.calcInterest();

		if(550>x.getBalance())
		{
			result+=x.withdraw(550) + "\n";
			result+=y.deposit(0) +"\n";
		}
		else
		{
			result+=x.withdraw(550) + "\n";
			result+=y.deposit(550) +"\n";
		}

		xinterest = x.calcInterest();
		yinterest = y.calcInterest();

		result+="\n";

		result+="Final Balance for account "+ xacc +" = $ "+ String.format("%.2f",x.getBalance()) +"\n";
		result+="Final Balance for account "+ yacc +" = $ "+ String.format("%.2f",y.getBalance()) + "\n\n";

		result+="Interest Rate = "+BankAccount.getInterest()+" %";

		JTextArea h = new JTextArea();
		h.setText(result);
		Font myFont = new Font("Monospaced", Font.PLAIN, 14);
		h.setFont(myFont);
		Container container = getContentPane();
		container.add(h);

	}
}