// 比较两个boolean数组. bArr1 = new boolean[]{true, false}; bArr2 = new boolean[]{true, false}; b = Arrays.equals(bArr1, null); // false b = Arrays.equals(bArr1, bArr2); // true
// 对于原生类型的数组可以用equals(). b = Arrays.equals(new byte[]{0}, new byte[]{0}); // true b = Arrays.equals(new char[]{'a'}, new char[]{'a'}); // true b = Arrays.equals(new short[]{0}, new short[]{0}); // true b = Arrays.equals(new int[]{0}, new int[]{0}); // true b = Arrays.equals(new long[]{0L}, new long[]{0L}); // true b = Arrays.equals(new float[]{0F}, new float[]{0F}); // true b = Arrays.equals(new double[]{0D}, new double[]{0D}); // true
// 假如比较的是Object型的数组，null元素是相等的. // 假如于元素不是null, java虚拟机会自动调用Object.equals(). b = Arrays.equals(new String[]{"a"}, new String[]{"a"}); // true b = Arrays.equals(new String[]{null}, new String[]{null}); // true b = Arrays.equals(new String[]{"a"}, new String[]{null}); // false
