Java Array Split split(final int[] array)

Description

Splits array into two smaller arrays.

License

Open Source License

Parameter

Parameter	Description
array	array to split

Return

two arrays as a split result, 0 index - left part (equal by length or bigger then right part), 1 index - right part.

Declaration

static int[][] split(final int[] array) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Arrays;

public class Main {
    /**/*from  ww w  .  java 2  s  . c o  m*/
     * Splits array into two smaller arrays. If the array length is odd then the right part (0 index) will always be bigger.
     * Example: array 2, 1, 3, 5, 4 will be splitted into 2, 1 and 3, 5, 4,
     *
     * @param array array to split
     * @return two arrays as a split result, 0 index - left part (equal by length or bigger then right part), 1 index - right part.
     */
    static int[][] split(final int[] array) {
        final int[] part1 = Arrays.copyOfRange(array, 0, array.length / 2);
        final int[] part2 = Arrays.copyOfRange(array, array.length / 2, array.length);

        return twoDimensionalArray(part1, part2);
    }

    /**
     * Creates one two-dimensional array from two one-dimensional arrays.
     *
     * @param array1 first part of two dimensional array (at index 0)
     * @param array2 second part of two dimensional array (at index 1)
     * @return two dimensional array from array1 and array2
     */
    static int[][] twoDimensionalArray(final int[] array1, final int[] array2) {
        final int[][] result = new int[2][];
        result[0] = array1;
        result[1] = array2;

        return result;
    }
}

Related

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5. split(int splitBefore, byte[] source)
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7. splitAndPad(byte[] byteArray, int blocksize)
8. splitArray(byte[] src, int size)