Java Program to Increment All Elements of an Array by One

Write a Java program to increment all elements of an array by one using for loop. In this Java example, for loop will iterate array items, and within it, we incremented each array element by one.

package NumPrograms;

import java.util.Scanner;

public class ArrayEleIncrementOne1 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		int Size, i;
		
		sc = new Scanner(System.in);
		
		System.out.print("Please Enter the Array size = ");
		Size = sc.nextInt();
		
		int[] arr = new int[Size];
		
		System.out.format("Enter the Array %d elements : ", Size);
		for(i = 0; i < Size; i++) 
		{
			arr[i] = sc.nextInt();
		}
	
		for(i = 0; i < arr.length; i++) 
		{
			arr[i] = arr[i] + 1;
		}
		
		System.out.println("\nThe Final Array After Incremented by One");
		for(i = 0; i < arr.length; i++) 
		{
			System.out.print(arr[i] + "   ");
		}
	}
}

We removed the extra for loop in this Java example and incremented the array element while assigning the value.

package NumPrograms;

import java.util.Scanner;

public class ArrayEleIncrementOne2 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		int Size, i;
		
		sc = new Scanner(System.in);
		
		System.out.print("Please Enter the Array size = ");
		Size = sc.nextInt();
		
		int[] arr = new int[Size];
		
		System.out.format("Enter the Array %d elements : ", Size);
		for(i = 0; i < Size; i++) 
		{
			arr[i] = sc.nextInt();
			arr[i] = arr[i] + 1;
		}
		
		System.out.println("\nThe Final Array After Incremented by One");
		for(i = 0; i < arr.length; i++) 
		{
			System.out.print(arr[i] + "   ");
		}
	}
}

Please Enter the Array size = 7
Enter the Array 7 elements : 13 33 54 76 34 98 11

The Final Array After Incremented by One
14   34   55   77   35   99   12   

Java program to increment all elements of an array by one using a while loop.

package NumPrograms;

import java.util.Scanner;

public class ArrayEleIncrementOne3 {
	private static Scanner sc;
	
	public static void main(String[] args) {
		int Size, i;
		
		sc = new Scanner(System.in);
		
		System.out.print("Please Enter the Array size = ");
		Size = sc.nextInt();
		
		int[] arr = new int[Size];
		
		System.out.format("Enter the Array %d elements : ", Size);
		i = 0;
		while(i < Size) 
		{
			arr[i] = sc.nextInt();
			arr[i] = arr[i] + 1;
			i++;
		}
		
		System.out.println("\nThe Final Array After Incremented by One");
		i = 0;
		while(i < arr.length) 
		{
			System.out.print(arr[i] + "   ");
			i++;
		}
	}
}

Please Enter the Array size = 8
Enter the Array 8 elements : 11 22 33 44 55 66 77 88

The Final Array After Incremented by One
12   23   34   45   56   67   78   89