Java Array Equal equals(Object array1, Object array2)

Description

equals

License

Open Source License

Declaration

static boolean equals(Object array1, Object array2) 

Method Source Code

//package com.java2s;

import java.util.Arrays;

public class Main {
    static boolean equals(Object array1, Object array2) {
        boolean equal = false;
        //If the same array or both null
        if (array1 == array2) {
            equal = true;/*from  ww w .j a  v a  2  s . co  m*/
        }
        //If both non-null and of the same class
        else if (array1 != null && array2 != null && array1.getClass().equals(array2.getClass())) {
            if (array1 instanceof byte[] && array2 instanceof byte[]) {
                equal = Arrays.equals((byte[]) array1, (byte[]) array2);
            } else if (array1 instanceof short[] && array2 instanceof short[]) {
                equal = Arrays.equals((short[]) array1, (short[]) array2);
            } else if (array1 instanceof int[] && array2 instanceof int[]) {
                equal = Arrays.equals((int[]) array1, (int[]) array2);
            } else if (array1 instanceof long[] && array2 instanceof long[]) {
                equal = Arrays.equals((byte[]) array1, (byte[]) array2);
            } else if (array1 instanceof float[] && array2 instanceof float[]) {
                equal = Arrays.equals((float[]) array1, (float[]) array2);
            } else if (array1 instanceof double[] && array2 instanceof double[]) {
                equal = Arrays.equals((double[]) array1, (double[]) array2);
            } else if (array1 instanceof boolean[] && array2 instanceof boolean[]) {
                equal = Arrays.equals((boolean[]) array1, (boolean[]) array2);
            } else if (array1 instanceof char[] && array2 instanceof char[]) {
                equal = Arrays.equals((char[]) array1, (char[]) array2);
            } else if (array1 instanceof Object[] && array2 instanceof Object[]) {
                equal = Arrays.equals((Object[]) array1, (Object[]) array2);
            } else {
                throw new IllegalArgumentException("One or more of the values provided are not an array\n"
                        + "array1 class: " + array1.getClass() + "\n" + "array2 class: " + array2.getClass());
            }
        }

        return equal;
    }
}

Related

1. equals(int[] a, int[] b)
2. equals(int[][] ar1, int[][] ar2)
3. equals(long[] a, long[] a2)
4. equals(Map a, Map b)
5. equals(Map map1, Map map2)
6. equals(Object array1, Object array2)
7. equals(Object array1, Object array2)
8. equals(Object[] objs1, Object[] objs2)
9. equals(String[] fullSet, String[] subSet)