数组类输出

public class ArryDemo06 {
    public static void main(String[] args) {
        int[] a = {1,2,3,4,9999,3142,45,888,77};
        System.out.println(a);//[I@1b6d3586对象输出不成功
        System.out.println(Arrays.toString(a)); //调用类方法输出
        pringArray(a);//自创方法输出

        Arrays.sort(a);//数组排序  升序
        System.out.println(Arrays.toString(a));

        Arrays.fill(a,2,4,0);//数组填充
        System.out.println(Arrays.toString(a));
    }
        public static void pringArray(int[] a){
            for (int i = 0; i < a.length; i++) {
                if (i==0){
                    System.out.print("[");
                }
                if (i==a.length-1){
                    System.out.print(a[i]+"]");
                }else{
                    System.out.print(a[i]+", ");
                }

                
            }



        }



}