Java Code: 5 Ways to Add Two Numbers (With Examples)

Java Code: 5 Ways to Add Two Numbers (With Examples)

In this article, we will discuss the concept of Java Code: 5 Ways to Add Two Numbers (With Examples)

In this post, we are going to learn how to write a program to 5 Ways to Add Two Numbers (With Examples) in  Java programming language.

here, I’ll give you separate short programs for each method so it’s easier to understand

5 Ways to Add Two Numbers (With Examples)

Using simple arithmetic operator

In this program, we use a simple arithmetic operator to add two numbers.

Program 1

/*Calculate sum of two numbers in java using + operator */ //Using the plus(+) Operator:
 public class addition {
      public static void main (String args[]){
  
   int num1 = 50;
   //variable declaration and initialization of num 1
   int num2 = 30;
    //variable declaration and initialization of num 2
   int sum = num1 + num2;
   //Calculate sum of two numbers in java using + operator
   System.out.print("Total is:"+sum);
   //Print the result on the screen
   
 
  }
  }

When the above code is executed, it produces the following result

Total is : 80

 

Using a method

In this program, we use a User defined method to add two numbers.

Program 2

//addition of two numbers using a method
//in java programming

class AddTwoNum{
    public static void main(String[] args) {
        int num1=56;
        int num2=23;
        int sum=addNum(num1,num2);
        System.out.println("Sum: "+sum);
    }
    public static int addNum(int a, int b){
     return a+b;   
    }
}

When the above code is executed, it produces the following result

Sum: 79

 

Using constructure

In this program, we use a constructor to add two numbers.

Program 3

//Addition two numbers using constructor
//in Java Programming 
public class Cons_Add{
    private int result;
    public Cons_Add(int a, int b){
        this.result=a+b;
    }
    
    public int get_Result(){//user defined method
        return result;
    }
    public static void main(String[] args) {
int num_1=75;
int num_2=55;
    
        Cons_Add add=new Cons_Add(num_1,num_2);
        System.out.println(" result :"+add.get_Result());
    }
}

When the above code is executed, it produces the following result

result :130

 

Using User input

In this program, we use user-input to add two numbers.

Program 4

//Addition two numbers using user inputr
//using simple additional operator in Java Programming 
import java.util.Scanner;
public class NormalAdd{

    
    public static void main(String[] args) {
      Scanner input=new Scanner(System.in);
 System.out.println("Input value for num1:");
int num_1=input.nextInt();

 System.out.println("Input value for num2:");
int num_2=input.nextInt();
    int result=num_1+num_2;
             System.out.println("Addition of two numbers using  constructor:");
        System.out.println(" result :"+result);
    }
}

When the above code is executed, it produces the following result

Input value for num1:
35
Input value for num2:
45
Addition of two numbers using constructor:
result :80

 

Using Recursion

In this program, we use a recursive method to add two numbers.

Program 5

//addion java two num Using recursion
class AddTwoNumUsingRecursion {
    //recursive function add two numbers
    public static int addTwoNum(int a,int b){
        if(b==0){
            return a;//Base case:If b become zero, result is a
    }
    return addTwoNum(a+1, b-1);//increment a, dicrement b
    }
    public static void main(String[] args) {
        int num1=34;
        int num2=66;
        int sum=addTwoNum(num1,num2);
        System.out.println("Sum of " + num1 + " and "+ num2+" : "+ sum);
    }
}

When the above code is executed, it produces the following result

Sum of 34 and 66 : 100

 

Now you can see 5 different Java programs to add two numbers

 

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