Tests two arrays for equality. : Array « Date Type « Android

Tests two arrays for equality.

import java.util.Arrays;

class Main{

     * Tests two arrays for equality.  To be considered equal, the arrays must
     * have exactly the same dimensions, and the values in each array must also
     * match (two values that qre both NaN or both INF are considered equal
     * in this test).
     * @param a  the first array (<code>null</code> permitted).
     * @param b  the second array (<code>null</code> permitted).
     * @return A boolean.
     * @since JFreeChart 1.0.13
    public static boolean equal(double[][] a, double[][] b) {
        if (a == null) {
            return (b == null);
        if (b == null) {
            return false;  // already know 'a' isn't null
        if (a.length != b.length) {
            return false;
        for (int i = 0; i < a.length; i++) {
            if (!Arrays.equals(a[i], b[i])) {
                return false;
        return true;



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