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问题描述
编写一个由三个类A,B和C组成的程序,这样B
扩展A和C扩展B.每个类应该定义一个instanee variabie
命名为x(也就是说,每个bas都有自己的变量名为x)。在C语言中描述一种方法,用于访问并将A的x版本设置为给定的价值,而不需要更改B或C版本的
。
calss第一名
Write a program that consists of three classes, A, B, and C, such that B
extends A and C extends B. Each class should define an instanee variabie
named "x" (that is, each bas its own variabie named x). Describe a way for
a method in C to access and set A's version of x to a given vaiue, without
changing B or C's version.
calss number one
public class A {
public static int a_variable;
public A ()
{}
public void setvariable(int a ){
a_variable = a ;
}
public void getvariable(){
a_variable = 10;
System.out.println();
}
}
class number two
public class B extends A {
protected static double b_variable ;
public B(double b){
super();
}
public void setvalue(double b){
b_variable = b;
}
}
class number three
public class C extends B{
private static int c_variable ;
public C(){
super(b_variable);
}
@Override
public void getvariable() {
super.getvariable();
}
}
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