--toString出力配列要素()
int[] arr1 = {1,2,3};
System.out.println(Arrays.toString(arr1));
第二に、)(配列要素の--equalsを比較
int[] arr1 = {1,2,3};
int[] arr2 = {1,2,3};
System.out.println(Arrays.equals(arr1,arr2));
昇順--sort第三、配列要素()
int[] arr1 = {1,3,2};
Arrays.sort(arr1);
System.out.println(Arrays.toString(arr1));
第四に、セット--asList(の配列)
int[] arr1 = {1,3,2};
List<int[]> li = Arrays.sort(arr1);
System.out.println(li.get(1)); // 3