java中打印数组的5种方法

   Arrays.toString(arr)for(int n: arr)    System.out.println(n+", ");for (int i = 0; i < arr.length; i++) {   System.out.print(arr[i] + ", ");}System.out.println(Arrays.asList(arr));Arrays.asList(arr).stream().forEach(s -> System.out.println(s));//java8