Java经典编程题

Java编程题
1.设计一个学生类Student和它的一个子类Undergraduate. 要求如下:
(1) Student 类有name和age属性，一个包含两个参数的构造方法，用于给name和age属性赋值，一个show()方法打印Student的属性信息。(将name和age属性私有化)
(2)本科生类Undergraduate增加一个degree(学位)属性。有一个包含三个参数的构造方法,前两个参数用于给继承的name和age属性赋值,第三个参数给degree专业赋值，一个show()方法用于打印Undergraduate的属性信息。( degree属性私有化)
(3)在测试类中分别创建Student对象和Undergraduate对象，调用它们的show()。

package kcy;

public class main {
		public static void main(String[] args) {
	      Student a= new Student("李四",19); 
	      a.show();
	        System.out.println("---------------------------------------");
	      Undergratude a1=new Undergratude("张三",19,"在读本科生");
	        a1.show();
	}
}

  

 

  
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package kcy;
public class Student {	
     private String name;	
     private int age;	
public Student(String name, int age) 
{    this.name = name;        
     this.age = age;    }    
public void show(){        System.out.println("name="+getName()+"\nage="+getAge());    }    
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;    }}

  

 

  
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package kcy;

public class Undergratude extends Student {
	private String degree;

public Undergratude (String name,int age,String degree) {
	super(name,age);
	this.degree = degree;
    }
    public void show(){
        System.out.println("name="+getName()+"\nage="+getAge()+"\ndegree="+getDegree());
    }

    public String getDegree() {
        return degree;
    }

    public void setDegree(String degree) {
        this.degree = degree;
    }
}

  

 

  
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文章来源: blog.csdn.net，作者：静Yu，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/qq_46285118/article/details/109057128