Example 1: Integer Array: Write a Java program to update array elements at three different positions: start, middle, and end. Provide 3 different examples using user input for integer arrays.

Java Programming Language Array in java (Article) Array in java (Program)

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Example 1: Integer Array

Program:

import java.util.Scanner;

public class UpdateIntArrayUser {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int[] arr = {10, 20, 30, 40, 50};

        System.out.println("Original Array:");
        for(int num : arr){
            System.out.print(num + " ");
        }

        // User input to update start, middle, and end
        System.out.print("\nEnter new value for start: ");
        arr[0] = sc.nextInt();

        System.out.print("Enter new value for middle: ");
        arr[arr.length / 2] = sc.nextInt();

        System.out.print("Enter new value for end: ");
        arr[arr.length - 1] = sc.nextInt();

        System.out.println("Updated Array:");
        for(int num : arr){
            System.out.print(num + " ");
        }
    }
}

Output:

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