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Java Program to Print an Array

Java Program to Print an Array

In this program, you'll learn different techniques to print the elements of a given array in Java.

To understand this example, you should have the knowledge of the following Java programming topics:


Example 1: Print an Array using For loop

public class Array {

    public static void main(String[] args) {
        int[] array = {1, 2, 3, 4, 5};

        for (int element: array) {
            System.out.println(element);
        }
    }
}

Output

1
2
3
4
5

In the above program, the for-each loop is used to iterate over the given array, array.

It accesses each element in the array and prints using println().


Example 2: Print an Array using standard library Arrays

import java.util.Arrays;

public class Array {

    public static void main(String[] args) {
        int[] array = {1, 2, 3, 4, 5};

        System.out.println(Arrays.toString(array));
    }
}

Output

[1, 2, 3, 4, 5]

In the above program, the for loop has been replaced by a single line of code using Arrays.toString() function.

As you can see, this gives a clean output without any extra lines of code.


Example 3: Print a Multi-dimensional Array

import java.util.Arrays;

public class Array {

    public static void main(String[] args) {
        int[][] array = {{1, 2}, {3, 4}, {5, 6, 7}};

        System.out.println(Arrays.deepToString(array));
    }
}

Output

[[1, 2], [3, 4], [5, 6, 7]]

In the above program, since each element in array contains another array, just using Arrays.toString() prints the address of the elements (nested array).

To get the numbers from the inner array, we just another function Arrays.deepToString(). This gets us the numbers 1, 2 and so on, we are looking for.

This function works for  3-dimensional arrays as well.