www.ypnh.net > 用jAvA编写TEmporAryEmployEE(临时工)类,该类继承...

用jAvA编写TEmporAryEmployEE(临时工)类,该类继承...

public class Employee { protected String name; protected double salary; public double getSalary() { return salary; } public void setSalary(double salary) { this.salary = salary; } public String getName() { return name; } public...

public class Person { protected String name = "wxk"; protected char sex = '男'; protected int age = 20; public Person() { System.out.println("父类的构造器"); } public String toString(){ System.out.println("父类的toString()"); r...

楼主的意思是Elephant继承Animal,然后实例Animal时能够拿到Elephant的腿的数目吧。 其实就是一个简单的继承,只是Animal用子类来实例化。 public calss Animal{ private int legs; public Animal(int legs){ this.legs=legs; System.out.printl...

public class A { int x = 1; int y = 2; public int sum() { return 0; } public int sum(int a) { // 重载方法sum() return a * a; } public int sum(int a, int b) { // 重载方法sum() return a + b; } class B extends A { // 继承 内部...

public class Run {public static void main(String[] args) {Master master = new Master();master.feedDog("鸡骨头");master.feedCat("鸡骨头");}}class Master {private Pet mPet;private Food mFood;public void feedCat(String food) {mPet...

public class Person { private String name; private int age; public void getInfo() { System.out.println("Name: " + name); System.out.println("Age: " + age); } public String getName() { return name; } public void setName(String n...

Interface java.util.Queue 看看API文档 。。。。。。。。。。。。。。。。。。。。

先在A类里面实例化一个B对象 然后用B对象调用方法就可以了。

public class Account { protected String accId; protected String name; protected double money; public Account (String accId,String name){ this(accId,name,0); } public Account (String accId,String name,double money){ this.accId =...

CLS.java 顺便说下类名命名首字母要大写 package bao; public class CLS { private int a; public int getA() { return a; } public void setA(int a) { this.a = a; } } Test.java import bao.CLS; public class Test_CLS { public static void...

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