1 package varycode; 2 class Grandparent 3 { 4 public Grandparent() 5 { 6 7 Sy...
super代表父类的引用,用于访问父类的属性、方法、构造器 2.基本语法297 代码在com.stulzl.super_.包中 父类A packagecom.stulzl.super_; publicclassA{ //4个属性 publicintn1=100; protectedintn2=200; intn3=300; privateintn4=400; //无参构造器 publicA(){ } publicA(Stringname){ } publicA(Stringname,intage){ } //publicvoidcal(){ //System.out.print...