java陣列

Arrays類

 public static void main(String[] args) {
        int []a ={1,2,3,9000,1234,5346,6,7};
        System.out.println(a);//[[email protected]
        //列印陣列元素
        System.out.println(Arrays.toString(a));//[1, 2, 3, 9000, 1234, 5346, 6, 7]
        //排序
        Arrays.sort(a);
        System.out.println
 
(Arrays.toString(a));//[1, 2, 3, 6, 7, 1234, 5346, 9000]
        Arrays.fill(a,0);
        System.out.println(Arrays.toString(a));//[0, 0, 0, 0, 0, 0, 0, 0]
        //JDK幫助文件
        }