Java Program to Find the Sum of Array

In this tutorial you will learn about the Java Program to Find the Sum of Array and its application with practical example.

In this tutorial, we will learn to create a Java program that will Find the Sum of an Array using Java programming.

Table Of Contents−

Java Program to Find the Sum of Array

Prerequisites:-

Before starting with this tutorial, we assume that you are the best aware of the following Java programming topics:

Operators in Java Programming.

Basic Input and Output function in Java Programming.
Basic Java programming.
For loop in Java programming.

Arithmetic operations in Java Programming.

What is An array?

The array is a collection of similar data types. An array can store multiple values with different indexes in memory by using a single variable. The array can be both single and multidimensional.

Program description to Find Sum of all Elements in an Array.

In this program, we will first take the input array size and the elements from the user. Then we will add all the elements of the array using the for loop. At last, we will print that sum of elements of the array using the print function.

With the help of this program, we can Find the Sum of all Elements in an Array.

Program Code:-

import java.util.Arrays;
import java.util.Scanner;
public class SumOfArray {
   //Body of main function of the program.
   public static void main(String args[]){
      //Taking the size of the array.
      System.out.println("Enter the required size of the array :: ");
      Scanner s = new Scanner(System.in);
      //Declaring the required variables for the program.
      int sz = s.nextInt();
      int arry[] = new int [sz];
      int sum = 0;
      //Taking the elements of the array.
      System.out.println("Enter the elements of the array one by one ");
      
      //Finding the sum of the elements of the array.
      for(int i=0; i<sz; i++){
         arry[i] = s.nextInt();
         //Adding the elements of the array.
         sum = sum + arry[i];
      }
      //Printing the array.
      System.out.println("Elements of the array are: "+Arrays.toString(arry));
      //Printing the sum of array.
      System.out.println("Sum of the elements of the array ::"+sum);
   }
}

import java.util.Arrays;

import java.util.Scanner;

public class SumOfArray {

//Body of main function of the program.

public static void main(String args[]){

//Taking the size of the array.

System.out.println("Enter the required size of the array :: ");

Scanner s = new Scanner(System.in);

//Declaring the required variables for the program.

int sz = s.nextInt();

int arry[] = new int [sz];

int sum = 0;

//Taking the elements of the array.

System.out.println("Enter the elements of the array one by one ");

//Finding the sum of the elements of the array.

for(int i=0; i<sz; i++){

arry[i] = s.nextInt();

//Adding the elements of the array.

sum = sum + arry[i];

}

//Printing the array.

System.out.println("Elements of the array are: "+Arrays.toString(arry));

//Printing the sum of array.

System.out.println("Sum of the elements of the array ::"+sum);

}

Output:-

In the above program, we have first initialized the required variable.

sum = it will hold the integer value for the sum of numbers.
arry[] = it will hold the integer value of the input elements.
i = it will hold the integer value.

sz = it will hold the integer value of the input.

Input the number of elements and the elements of the array from the user.

Program Logic Code to find the sum of an array.

Printing output sum of the array elements.

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Java Program to Find the Sum of Array