How to Declare an Integer Array in Java - Step by Step Examples



How to Declare an Integer Array in Java ?

Answer

To declare an integer array in Java, you can use array initialization syntax or the new keyword with the array type.



✐ Examples

1 Declare and Initialize an Integer Array

In this example,

  1. We declare an integer array named numbers with predefined values.
  2. We initialize the array using array initialization syntax.
  3. We print the array to demonstrate the initialization.

Java Program

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5};
        System.out.println("Integer Array: " + Arrays.toString(numbers));
    }
}

Output

Integer Array: [1, 2, 3, 4, 5]

2 Declare an Empty Integer Array

In this example,

  1. We declare an empty integer array named emptyArray with a specific size.
  2. We print the array to demonstrate the declaration.

Java Program

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] emptyArray = new int[0];
        System.out.println("Empty Integer Array: " + Arrays.toString(emptyArray));
    }
}

Output

Empty Integer Array: []

Summary

In this tutorial, we learned How to Declare an Integer Array in Java language with well detailed examples.




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