JAVA UML. NO CODE PICTURES PLS 15.5 (Create an investment-value calculator) Writ

Question

JAVA UML. NO CODE PICTURES PLS

15.5 (Create an investment-value calculator) Write a program that calculates the future value of an investment at a given interest rate for a specified number of years. The formula for the calculation is futureValue învestmentAmount * (1 + monthlyInterestRate)years.12 Use text fields for the investment amount, number of years, and annual interest rate. Display the future amount in a text field when the user clicks the Calculate button, as shown in Figure 15.27b. Exercise15 05 Investment Amount Number of Years: Annual Interest Rate: Future value: 10000 3.25 $11386.28 Calculate

Explanation / Answer

Program

import javax.swing.*;

import java.awt.event.*;

class Calc implements ActionListener

{

JFrame f;

JTextField t1,t2,t3,t4;

JLabel l1,l2,l3,l4;

JButton b;

static double inv=0,anrate=0,monrate=0,years=0, futval=0;

  

Calc()

{

f=new JFrame("Exercise15_05");

t1=new JTextField();

t2=new JTextField();

t3=new JTextField();

t4=new JTextField();

l1=new JLabel("Investment Amount:");

l2=new JLabel("Number of years:");

l3=new JLabel("Annual Interest Rate:");

l4=new JLabel("Future Value:");

b=new JButton("CALCULATE");

  

l1.setBounds(20,40,180,30);

t1.setBounds(210,40,180,30);

l2.setBounds(20,100,180,30);

t2.setBounds(210,100,180,30);

l3.setBounds(20,160,180,30);

t3.setBounds(210,160,180,30);

l4.setBounds(20,220,180,30);

t4.setBounds(210,220,180,30);

  

b.setBounds(260,280,110,30);

f.add(t1);

f.add(t2);

f.add(t3);

f.add(t4);

f.add(l1);

f.add(l2);

f.add(l3);

f.add(l4);

f.add(b);

  

f.setLayout(null);

f.setVisible(true);

f.setSize(420,350);

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

f.setResizable(false);

  

b.addActionListener(this);

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==b)

{ inv=Double.parseDouble(t1.getText());

years=Double.parseDouble(t2.getText());

anrate=Double.parseDouble(t3.getText());

monrate=anrate/12; // formula to convert annual rate of interest to monthly

futval=inv* Math.pow((1+monrate),(years*12)); //formula

t4.setText("$"+Double.toString(futval));

}   

}

public static void main(String...s)

{

new Calc();

}

}

Note: we are receiving annual interest rate but we need to apply monthly interest rate so you need to divide it by 12

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