CJ-4 : Sum(user defined values)

Type the programs in NOTEPAD or DOS prompt itself, for Consol Application.
Type in NETBEANS or ECLIPSE for Window Application.
Here after , I am just typing the programs only..to know more about it , refer

Introduction to JAVA 

before doing any JAVA Programs.

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Refer Sum(predefined values) also.
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import java.io.*;

class Adduser 

{

public static void main(String args[]) 

{   

     int a,b,sum;

     try

{

DataInputStream x=new DataInputStream(System.in);

System.out.println("Enter two numbers :");

a=Integer.parseInt(x.readLine());

b=Integer.parseInt(x.readLine());

sum=a+b;

System.out.println("Addition= "+sum);

}

   catch(Exception e)

   {

   }

}

}

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Output : 

Enter two numbers :

30

20

Addition=50.