Sum, Product, Difference, & Quotient of two Integers Using an Applet Application

Sum, Product, Difference, & Quotient of two Integers Using an Applet Application

   March 30, 2018       Unknown

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Write an application that asks the user to enter two numbers, obtains the numbers from the user and prints the sum, product, difference and quotient(division) of the numbers.

//import java packages
import java.awt.Graphics;
import javax.swing.*;

public class ArithmeticApplet extends JApplet {

 double sum;                // sum of values entered by user
 double product;          //product of values entered by user
 double difference;     //difference of values entered by user
 double quotient;      //division of values entered by user

 //initialize applet by obtaining values from user
 public void init()
 {
  String firstNumber;               //first string entered by user
  String secondNumber;         //second string entered by user
 
  double number1;              //first number to add/multiply/subtract/divide
  double number2;            //second number to add/multiply/subtract/divide
 
  //obtain string from user
  firstNumber = JOptionPane.showInputDialog("Enter first floating number");
  secondNumber = JOptionPane.showInputDialog("Enter second floating number");
 
  //convert from type string to type double
  number1= Double.parseDouble(firstNumber);
  number2= Double.parseDouble(secondNumber);
 
  //compute numbers
  sum = number1 + number2;
  product= number1 * number2;
  difference = number1 - number2;
  quotient = number1 / number2;
 
 }
 //draw results in a rectangle on applet's background
 public void paint (Graphics g)
 {
  //call superclass version of method paint
  super.paint(g);
 
  //draw rectangle starting from (15,10) at (270 pixels wide, 80 pixels tall
  g.drawRect(15, 10, 270, 80);
 
  //draw results as a String at (25,25)
  g.drawString("The sum is: " + sum,25, 25);
  g.drawString("The product is: "+product, 25,40);
  g.drawString("The difference is: " + difference, 25, 55);
  g.drawString("The quotient is: " + quotient, 25, 70);

 }

}