Reverse an Array in Java2 min read

In this java program tutorial, we will write a java program to reverse an array. Before that, you may go through the following topic in java.

Explanation: In this java program we will take user input for the size of an array and array elements. The elements are reversed using for loop and while loop.

We will write two programs:

  1. Using for loop
  2. Using while loop

Java program to reverse an array without using another array

Source Code: reverse the array using for loop.

Output:

Enter the size of a first array: 5
Enter 5 elements in first Array:
10
20
30
40
50
Original array:
10 20 30 40 50
Array in reverse order:
50 40 30 20 10


Reverse the Array using while loop

In this program, we will create a separate user-defined function to reverse the array, and then we will print the reversed array.

Source Code: reverse an array using a while loop.

Output:

Enter the size of a first array: 5
Enter 5 elements in first Array:
1
2
3
4
5
Original array: 1 2 3 4 5
Reversed array: 5 4 3 2 1


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