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Java继承类代码 java继承类例子
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JAVA继承问题 求代码
第一个:
public class Yaojing {
protected String name;
protected int age;
protected String gender;
public void showBasicInfo() {
System.out.println(toString());
}
public void eatTangSeng() {
System.out.println("吃饱了");
}
@Override
public String toString() {
return "Yaojing [name=" + name + ", age=" + age + ", gender=" + gender + "]";
}
}
第二个类
public class Zhizhujing extends Yaojing {
public void buildNet(){
System.out.println("蜘蛛在织网");
}
}
第三个类
public class Baigujing extends Yaojing {
public void beBeauty(){
System.out.println("白骨精");
}
}
相关问答
Q1: java继承问题求完整代码！
参考程序：
public class Student {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public void goHome(Traffic t){
System.out.println("学生:"+this.name);
t.run();
}
public Student(String name) {
this.name = name;
}
}
public abstract class Traffic {
protected double speed;
public void run(){
}
}
public class Bus extends Traffic{
@Override
public void run() {
System.out.println("时速为"+super.speed+"公里每小时的汽车正在嘀嗒嘀嗒的开着.");
}
public Bus(double busSpeed) {
super.speed = busSpeed;
}
}
public class Train extends Traffic {
@Override
public void run() {
System.out.println("时速为"+super.speed+"公里每小时的火车正在况且况且的开着.");
}
public Train(double trainSpeed) {
super.speed = trainSpeed;
}
}
public class AirPlan extends Traffic {
@Override
public void run() {
System.out.println("时速为"+super.speed+"公里每小时的飞机正在吴屋吴屋的开着.");
}
public AirPlan(double airPlanSpeed) {
super.speed = airPlanSpeed;
}
}
public class Test {
public static void main(String[] args) {
Traffic traffic1 = new Bus(40);
Student student = new Student("小明");
student.goHome(traffic1);
Traffic traffic2 = new Train(120);
Student student2 = new Student("小花");
student2.goHome(traffic2);
Traffic traffic3 = new AirPlan(300);
Student student3 = new Student("小红");
student3.goHome(traffic3);
}
}
Q2: JAVA:编写一个动物的继承关系代码.
下面是一个简单的 Java 程序示例Java继承类代码，用于实现山羊和狼的继承关系，并在测试类中进行验证Java继承类代码：
Animal.java:
```java
public abstract class Animal {
public void walk() {
System.out.println("走路");
}
public abstract void eat();
}
```
Goat.java:
```java
public class Goat extends Animal {
@Override
public void eat() {
System.out.println("吃草");
}
}
```
Wolf.java:
```java
public class Wolf extends Animal {
@Override
public void eat() {
System.out.println("吃肉");
}
}
```
AnimalTest.java:
```java
public class AnimalTest {
public static void main(String[] args) {
Goat goat = new Goat();
wolf wolf = new wolf();
goat.eat(); // 输出：吃草
wolf.eat(); // 输出：吃肉
goat.walk(); // 输出：走路
wolf.walk(); // 输出：走路
}
}
```
在此程序中，Java继承类代码我们定义Java继承类代码了一个 `Animal` 类作为基类，包含Java继承类代码了所有动物都会有的行为（例如走路），并使用抽象方法 `eat()` 表示不同动物的饮食习惯。然后通过继承实现 `Goat` 和 `Wolf` 两个子类，并分别重写 `eat()` 方法。
在测试类中，我们分别创建了一个 `Goat` 和一个 `Wolf` 对象，并分别调用其 `eat()` 和 `walk()` 方法进行验证。可以看到，不同的动物具备不同的饮食习惯，但它们的走路行为是一致的。
Q3: java 类的继承，求大神给代码
public class JIhe {
private String color;
private String dateCreated;
private String filled;
public String getColor() {
return color;
}
public String getDateCreated() {
return dateCreated;
}
public String getFilled() {
return filled;
}
public void setColor(String color) {
this.color = color;
}
public void setFilled(String filled) {
this.filled = filled;
}
@Override
public String toString() {
return "Color:" + this.color +" filled:" + this.filled + "detaCreated:" + dateCreated;
}
}
------------------------------------------------------------------------------------------------------------
public class Circle extends JIhe {
private double radius;
public double getRadius() {
return radius;
}
public void setRadius(double radius) {
this.radius = radius;
}
public double getArea() {
return 3.14 * this.radius * this.radius;
}
public double getPerimeter() {
return 2 * 3.14 * this.radius;
}
public double getDiameter() {
return 2 * this.radius;
}
}
-----------------------------------------------------------------------------------------------------
public class Rectangle extends JIhe {
private double width;
private double height;
public double getWidth() {
return width;
}
public void setWidth(double width) {
this.width = width;
}
public double getHeight() {
return height;
}
public void setHeight(double height) {
this.height = height;
}
public double getArea(){
return this.width * this.height;
}
public double getPerimeter(){
return this.width * 2 + this.height * 2;
}
}
——————————————————————————————————————
public class Test {
public static void main(String[] args){
Circle circle = new Circle();
circle.setRadius(1.0);
System.out.println(circle.getArea());
System.out.println(circle.getColor());
System.out.println(circle.getDateCreated());
System.out.println(circle.getDiameter());
System.out.println(circle.getFilled());
System.out.println(circle.getPerimeter());
System.out.println(circle.getRadius());
Rectangle r = new Rectangle();
r.setHeight(2.0);
r.setWidth(4.0);
System.out.println(r.getArea());
System.out.println(r.getColor());
System.out.println(r.getDateCreated());
System.out.println(r.getFilled());
System.out.println(r.getHeight());
System.out.println(r.getPerimeter());
System.out.println(r.getWidth());
}
}
Q4: 教我写个继承类的小代码 java
Class instrument{
String name; //乐器的名称
String playStyle; //弹奏风格
public void instruPlay(name,playStyle){ //弹奏方法
System.out.println("这个乐器是"+name+",弹奏的风格是"+playStyle);
}
}
Class piano extend instrument{
String feeling="钢琴的声音好听！！"; //继承了instrument类后，变量就不用再写了，但可以增加一个变量
public void instruPlay("piano","轻音乐"){
System.out.println("这个乐器是"+name+",弹奏的风格是"+playStyle+feeling);
}
}
Class violin extend instrument{
String feeling="小提琴的声音也不错！！";
public void instruPlay("violin","melody is happy^_^"){
System.out.println("这个乐器是"+name+",弹奏的风格是"+playStyle+feeling);
}
}
很久没些java代码了，你测试一下看能不能跑起来，如有问题再问我吧。
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