继承
1.继承关系有两个类，父类和子类。子类是父类的拓展。
2.一个子类只能有一个父类，一个父类可以有多个子类。
package com.tiedandan.oop.继承;
public class Father {
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
private String name;
private int age;
private int height;
public void give(){
System.out.println("father is father");
}
}
子类：
package com.tiedandan.oop.继承;
public class Person extends Father{
private int age;
@Override
public int getAge() {
return age;
}
@Override
public void setAge(int age) {
this.age = age;
}
@Override
public int getHeight() {
return height;
}
@Override
public void setHeight(int height) {
this.height = height;
}
private int height;
public void let(){
System.out.println("son is young son");
}
}
测试类：
package com.tiedandan.oop.继承;
public class application {
public static void main(String[] args) {
Person person=new Person();
person.setAge(18);
person.setHeight(175);
person.setName("213");
System.out.println("父亲信息:");
System.out.println(person.getName());
Father father = new Father();
System.out.println(father.getName());
System.out.println(father.getAge());
System.out.println(father.getHeight());
System.out.println("儿子信息：");
System.out.println(person.getAge());
System.out.println(person.getHeight());
}
}
