java--面向对象之抽象类和接口综合案例

待我称王封你为后i 2022-06-03 01:18 280阅读 0赞

**Person：**

package Test;

public abstract class Person \{  
private String name;  
private int age;  
private String sex;  
private String national;  
  
public Person(String name, int age, String sex, String national) \{  
this.name = name;  
this.age = age;  
this.sex = sex;  
this.national = national;  
\}  
public abstract String eat();  
public abstract String walk();  
  
  
public String getName() \{  
return name;  
\}  
  
  
public int getAge() \{  
return age;  
\}  
  
  
public String getSex() \{  
return sex;  
\}  
  
  
public String getNational() \{  
return national;  
\}

**Language：**

package Test;  
  
  
public interface Language \{  
public abstract String speek();  
\}

**HZ：**

package Test;  
  
  
public class HZ extends Person implements Language \{  
  
  
public HZ(String name, int age, String sex, String national) \{  
super(name, age, sex, national);  
\}  
  
  
@Override  
public String speek() \{  
return "我会说汉语";  
\}  
  
  
@Override  
public String eat() \{  
return "可以吃东西";  
\}  
  
  
@Override  
public String walk() \{  
return "可以行走";  
\}  
  
  
\}

**huiZu：**

package Test;  
  
  
public class huiZu extends Person implements Language \{  
  
  
public huiZu(String name, int age, String sex, String national) \{  
super(name, age, sex, national);  
\}  
  
  
@Override  
public String speek() \{  
return "我会说回族的语言";  
\}  
  
  
@Override  
public String eat() \{  
return "可以吃东西";  
\}  
  
  
@Override  
public String walk() \{  
return "可以行走";  
\}  
  
  
\}

**MZ：**

package Test;  
  
  
public class MZ extends Person implements Language \{  
  
  
public MZ(String name, int age, String sex, String national) \{  
super(name, age, sex, national);  
\}  
  
  
@Override  
public String speek() \{  
return "我会说满族的语言";  
\}  
  
  
@Override  
public String eat() \{  
return "可以吃东西";  
\}  
  
  
@Override  
public String walk() \{  
return "可以行走";  
\}  
  
  
\}

**Test:**

package Test;  
  
  
import org.junit.Test;  
  
  
  
  
public class Jtest \{  
@Test  
public void test()\{  
HZ hanzu=new HZ("张三", 19, "女", "汉族");  
MZ manzu=new MZ("李四", 25, "男", "满族");  
huiZu huizu=new huiZu("王五", 23, "女", "回族");  
  
System.out.println(hanzu.getName()+" "+hanzu.getAge()+" "+hanzu.getSex()+" "+hanzu.getNational()+","+hanzu.eat()+","+hanzu.walk()+","+hanzu.speek());  
System.out.println(manzu.getName()+" "+manzu.getAge()+" "+manzu.getSex()+" "+manzu.getNational()+","+manzu.eat()+","+manzu.walk()+","+manzu.speek());  
System.out.println(huizu.getName()+" "+huizu.getAge()+" "+huizu.getSex()+" "+huizu.getNational()+","+huizu.eat()+","+huizu.walk()+","+huizu.speek());  
\}  
\}