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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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