摘要：
class A{protected double x=8.0,y=0.888888;public void speak(){System.out.println("我喜欢ＮＢＡ");}public void cry(){y=x+y;System.out.printf("y=%f\n",y);}}class B extends A{int y=100,z;public void speak(){z=2*y;System.out.println("I love This Game");System.out.printf("y=% 阅读全文
摘要：
class A{public double y=11.456789;public void f(){y=y+1;System.out.printf("y是double型的变量，y=%f\n",y);}}class B extends A{int y=0;public void g(){y=y+100;System.out.printf("y是int型的变量,y=%d\n",y);}}class Example5_3{public static void main(String args[]){B b=new B();b.y=200;b.g();b.f() 阅读全文
摘要：
class Father{private int moneyDollar=300;int moneyHK=200;int add(int x,int y){return x+y;}}class Son extends Father{int moneyRMB=800;public void changMoneyHK(int x){moneyHK=x;}public void changMoneyRMB(int x){moneyRMB=x;}int subs(int x,int y){return x-y;}}class GrandSon extends Son{int multi(int x,i 阅读全文