Java继承关系概述

Java中只支持单继承关系

　　

示例代码：

package com.java1995;

public class People {

private String name;
private int age;
private String sex;

//在基类扩展属性，其子类的属性和方法都会被继承，所以说继承易于扩展属性和方法

public void eat(){
System.out.println("人在吃饭");

}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}
}

package com.java1995;

public class Chinese extends People{

public void Speak(){
System.out.println("中国人说汉语");
}

}

package com.java1995;

public class ShanDongPeople extends Chinese {

public void Speak(){
System.out.println("山东人说山东话");
}

}