My java calculator does not give the expected output ! !!?

[Ammar Salem]

Hi, ranchers, i have been trying to make a simple java calculator,which is suppose to perform the basic Addition ,Multiplication,Subtraction,and Division, but the only result i am getting is for Addition.No other options are shown, i cant see the menu i coded.
please, i appreciate if you can have a look at my codings and comment.
thank you.
here is my code:
***************************************************

import java.io.*;
class MyCalculator
{
public void Addition()
{
try
{
int a;
int b;
int sum;
InputStreamReader is = new InputStreamReader(System.in);
BufferedReader br= new BufferedReader(is);
System.out.println(" Enter The first number ");
a=Integer.parseInt(br.readLine());
System.out.println(" Enter the second number ");
b=Integer.parseInt(br.readLine());
sum=a+b;
                                        System.out.println("Sum is "+"  "+sum);
                            System.out.println("Do you want to perform another operation again?");
System.out.println();
System.out.println("Type yes to contiue");
   br = new BufferedReader(new InputStreamReader(System.in));
   try
   {
String word = br.readLine();
String word1 ="yes";
if(word.equals(word1))
Addition();
else
optionSelected();
           }
 
   catch(Exception e)
   {
System.out.println(e);
 
   }
}
catch(IOException ex)
{
System.out.println( " My Own Exception");
}
 
}
public void Subtraction()
{
try{
int a;
int b;
int sub;
InputStreamReader is = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(is);
System.out.println(" Enter the first number : ");
a=Integer.parseInt(br.readLine());
System.out.println(" Enter the second number : ");
b=Integer.parseInt(br.readLine());
sub=a-b;
                       System.out.println("Sum is "+"  "+sub);
                        System.out.println("Do you want to perform another operation again?");
System.out.println();
System.out.println("Type yes to contiue");
   br = new BufferedReader(new InputStreamReader(System.in));
   try
   {
String word = br.readLine();
String word1 ="yes";
if(word.equals(word1))
Subtraction();
else
optionSelected();
           }
 
   catch(Exception e)
   {
System.out.println(e);
 
   }
}
catch(IOException ex)
{
System.out.println(" MY own Exception");
}
}
public void Multiplication()
{
try{
int a;
int b;
int mul;
InputStreamReader is = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(is);
System.out.println(" Enter the first number : ");
a=Integer.parseInt(br.readLine());
System.out.println(" Enter the second number : ");
b=Integer.parseInt(br.readLine());
mul=a*b;
                        System.out.println("Sum is "+"  "+mul);
                        System.out.println("Do you want to perform another operation again?");
System.out.println();
System.out.println("Type yes to contiue");
   br = new BufferedReader(new InputStreamReader(System.in));
   try
   {
String word = br.readLine();
String word1 ="yes";
if(word.equals(word1))
Multiplication();
else
optionSelected();
           }
 
   catch(Exception e)
   {
System.out.println(e);
 
   }
}
catch(IOException ex)
{
System.out.println(" MY own Exception");
}
}
 
public void Division()
{
try{
int a;
int b;
int div;
InputStreamReader is = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(is);
System.out.println(" Enter the first number : ");
a=Integer.parseInt(br.readLine());
System.out.println(" Enter the second number : ");
b=Integer.parseInt(br.readLine());
div=a/b;
                        System.out.println("Sum is "+"  "+div);
                        System.out.println("Do you want to perform another operation again?");
System.out.println();
System.out.println("Type yes to contiue");
   br = new BufferedReader(new InputStreamReader(System.in));
   try
   {
String word = br.readLine();
String word1 ="yes";
if(word.equals(word1))
Division();
else
optionSelected();
           }
 
   catch(Exception e)
   {
System.out.println(e);
 
   }
}
catch(IOException ex)
{
System.out.println(" MY own Exception");
}
}
public void optionSelected()
{
System.out.println("Welcome to my program");
System.out.println();
    System.out.println("Please select the operation you want to perform");
System.out.println("1.Addition");
System.out.println("2.Subtraction");
System.out.println("3.Multiplication");
    System.out.println("4.Division");
    System.out.println("5.Exit");
    System.out.println("Please Enter you choice...");
 
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
//String choice = String.valueOf(br.readLine());
try
{
int choice = Integer.parseInt(br.readLine());
 
 
 
 
 
switch(choice)
{
case 1:    Addition();
  break;
 
case 2:    Subtraction();
break;
 
case 3:    Multiplication();
break;
 
case 4:   Division();
break;
 
case 5:exit();
break;
 
default :System.out.println("This is not a valid option");
}
//break;
}
 
catch(IOException e)
{
System.out.println(e);
}
}
 
public void exit()
{
System.exit(0);
}
 
 
public static void main(String[] args)
{
MyCalculator mc = new MyCalculator();
mc.Addition();
mc.Subtraction();
mc.Multiplication();
mc.Division();
mc.optionSelected();
}
}

**************************************
[ January 09, 2008: Message edited by: Ammar Salem ]

[Ben Souther]

JavaRanch tip:

If you surround your posted code with code tags
it will be a lot easier for people to read your code; meaning that you will stand a better chance of someone answering your question.

You can go back and add them by clicking the link in the top post of this thread.

[Ernest Friedman-Hill]

Perhaps in main() you'd like to call optionSelected() to start off?