Simple Addition, Division, and Do While in Java

Create a Program that will add or divide, then ask the user if they'd want to perform the computation again using Do While

Output:

Source Code:

import java.io.*;

public class AddDivide {

private static PrintStream p=System.out;

public static BufferedReader q=new BufferedReader(new InputStreamReader (System.in));

public static void main (String []args)throws IOException{

p.println("MAIN MENU");

p.println();

p.println("[A] Addition");

p.println("[D] Division");

p.println("[E] Exit");

p.println();

p.print("Input Operation: ");

String input=q.readLine();

String o;

if (input.equals("A")|| input.equals("a"))

{

do{

p.print("Enter First Number: ");

String num1=q.readLine();

double n1=Double.parseDouble(num1);

p.print("Enter Second Number: ");

String num2=q.readLine();

double n2=Double.parseDouble(num2);

double sum;

sum=n1+n2;

p.println("The SUM is: " +sum);

p.println("Perform Addition again? [Y/N] ");

o=q.readLine();

}

while(o.equals("Y") || o.equals("y"));

}

else if (input.equals("D") || input.equals("d"))

{

do{

p.print("Enter First Number: ");

String num1=q.readLine();

double n1=Double.parseDouble(num1);

p.print("Enter Second Number: ");

String num2=q.readLine();

double n2=Double.parseDouble(num2);

double quo;

quo=n1/n2;

p.println("The quotient is: " +quo);

p.println("Perform Division again? [Y/N] ");

o=q.readLine();

}

while(o.equals("Y") || o.equals("y"));

}

else if (input.equals("E") || input.equals("e"))

{

System.exit(0);

}

else

{

p.print("Invalid Input!");

}

}

}