数组的内存图

public class DemoArray {
    public static void main(String[] args) {

        int[] array = new int[3];
        System.out.println(array);
        System.out.println(array[0]);
        System.out.println(array[1]);
        System.out.println(array[2]);
        System.out.println("==========================");
        array[1] = 10;
        array[2] = 20;
        System.out.println(array);
        System.out.println(array[0]);
        System.out.println(array[1]);
        System.out.println(array[2]);       
    }
}

 

package cn.itcast.day_04.demo_03;

public class DemoArray {
    public static void main(String[] args) {

        int[] arrayA = new int[3];
        System.out.println(arrayA);
        System.out.println(arrayA[0]);
        System.out.println(arrayA[1]);
        System.out.println(arrayA[2]);
        System.out.println("==========================");

        arrayA[1] = 10;
        arrayA[2] = 20;
        System.out.println(arrayA);
        System.out.println(arrayA[0]);
        System.out.println(arrayA[1]);
        System.out.println(arrayA[2]);
        System.out.println("==========================");

        int[] arrayB = arrayA;
        System.out.println(arrayB);
        System.out.println(arrayB[0]);
        System.out.println(arrayB[1]);
        System.out.println(arrayB[2]);
        System.out.println("==========================");

        arrayB[1] = 100;
        arrayB[2] = 200;
        System.out.println(arrayB);
        System.out.println(arrayB[0]);
        System.out.println(arrayB[1]);
        System.out.println(arrayB[2]);
        System.out.println("==========================");
    }
}