How to Split an Array in Java - Step by Step Examples

How to Split an Array in Java ?

Answer

To split an array into two arrays in Java, you can manually create two new arrays and copy elements from the original array into these new arrays based on the split condition.

✐ Examples

1 Split Array into Two Arrays

In this example,

We create an integer array named arr with some elements.
We define the split condition, such as a specific index or a value-based condition.
We create two new integer arrays firstPart and secondPart to hold the split parts.
We iterate through the original array arr and copy elements into firstPart until the split condition is met.
We continue iterating and copy the remaining elements into secondPart.
Finally, we print both split arrays to standard output.

Java Program

import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3, 4, 5};
        int splitIndex = 2; // Split at index 2
        int[] firstPart = new int[splitIndex];
        int[] secondPart = new int[arr.length - splitIndex];

        for (int i = 0; i < splitIndex; i++) {
            firstPart[i] = arr[i];
        }

        for (int i = splitIndex; i < arr.length; i++) {
            secondPart[i - splitIndex] = arr[i];
        }

        System.out.println("First part: " + Arrays.toString(firstPart));
        System.out.println("Second part: " + Arrays.toString(secondPart));
    }
}

Output

First part: [1, 2]
Second part: [3, 4, 5]

Summary

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

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