1.for循环

public static void main(String[] args) {
        int[]array=new int[]{1,2,3,4,5};
        for(int i=0;i< array.length;i++){
            System.out.print(array[i]);
        }
    }

2.for each循环

public static void main(String[] args) {
        int[]array=new int[]{1,2,3,4,5};
        for(int x:array){
            System.out.print(x+" ");
        }
    }

3.Arrays.toString循环

public static void main(String[] args) {
        int[]array=new int[]{1,2,3,4,5};
        String ret= Arrays.toString(array);
        System.out.println(ret);
    }