Java Novice Learning Note---instance object default pointer

Source: Internet
Author: User
public class TestClass {public static void main (string[] args) {Student stu1 = new Student (); Comp C1 = new Comp (); c1.band= "Lianghe County"; stu1.comp = c1;c1.band= "1111"; System.out.println (Stu1.comp.band);}} Class Comp {String band;} Class Student {int a;int b; Comp comp;}
1111

Objects for each class need to be instantiated, allowing object assignments to point to the same instantiated content. So changing the value of C1 in the example actually changes the value of Stu1.comp.band.

Java Novice Learning Note---instance object default pointer

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