CJ-25 : Addition using constructors

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.

*********************************************************************************************

Refer Sum(predefined values) and Sum(user defined values) also.

Next chapter CJ-26 : Accept Radius in meter

*********************************************************************************************

import java.io.*;

class add

{

    int a,b,c;

    add()

    {

    }

    add(int x,int y)

    {

            a=x;

            b=y;

            c=a+b;

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

    }

 }

class sub

{

    int n,m,s;

    sub()

    {

    }

    sub(int h,int j)

    {

        n=h;

        m=j;

        s=n-m;

        System.out.println("Subtraction ="+s);

    }

}

public class con1 

{

    public static void main(String args[])

    {

        add a=new add(10,20);

        sub b=new sub(60,20);

    }   

}

=========================================================================

Output : 

Addition =30

Subtraction =40

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.

*********************************************************************************************
Refer Sum(predefined values) also.
*********************************************************************************************
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)

   {

   }

}

}

========================================================================= 

Output : 

Enter two numbers :

30

20

Addition=50.

CJ-3 : Sum(predefined 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.

************************************************************************************
Refer Sum(user defined values) also.
************************************************************************************

class Add 

{

public static void main(String args[]) 

{   

     int a,b,c;

     a=20;

     b=40;

     c=a+b;

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

}

}

=========================================================================

Output : Addition=60.