Find Sum of 2 numbers in Java

Write a Java program to find the sum of 2 integers.

//class "Main" remove with your java file name class Main { public static void main(String[] argu){ //set the values int num1 = 30; int num2 = 20; //add the both number int sum = num1 + num2; //print the sum of num1 and num2 System.out.print("Sum = " + sum + "\n"); } }

In this program we simply add 2 number. this is simple code to add any two int type numbers in java.

Write a Java program to Get two number from user in Dialog box and then print Sum of both Numbers.

// 02: Sum of 2 int type numbers using Dialog (joptions lib) // import JOptionPane import javax.swing.JOptionPane; //class "Main" remove with your java file name class Main{ public static void main(String[] args){ // Define variables int numb1 ; int numb2 ; int Sum; //Get input numb1 = Integer.parseInt(JOptionPane.showInputDialog("Enter first Value: ")); numb2 = Integer.parseInt(JOptionPane.showInputDialog("Enter Second Number")); //Calculate sum Sum = numb1 + numb2; //display sum JOptionPane.showMessageDialog(null , "Sum = "+ Sum); } }

In this code we get input from user using Dialog box, in this code we import JOption, and with help of JOption we get input in dialog box, when this code runs it show a dialog box to get input and in the same way output display in dialog box.

Write a java program to Get tho number from user in console and print Sum both of numbers.

// 01: Get input from user and calculate sum using Console Scanner lib // import Scanner lib. import java.util.Scanner; //class "Main" remove with your java file name class Main{ public static void main(String[] args){ int numb1; int numb2; int Sum; //define Scanner object Scanner inputObject = new Scanner(System.in); // get input System.out.println("Enter first Value: "); numb1 = inputObject.nextInt(); System.out.println("Enter Second Value: "); numb2 = inputObject.nextInt(); //calculate sum Sum = numb1 + numb2; //Display Sum System.out.println("Sum = "+Sum); } }

In this code we Import Scanner to get input from user, there are different ways in java to get input from user, by using this class we get input in console(cmd) or terminal in linux.

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