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楼主 |
发表于 2020-7-25 15:16:33
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public class Student {
String name;
int age;
String degree;
}
public class Graduate extends Student{
String direction;
public void show(){
System.out.println(name+age+degree+direction);
}
Graduate(String name,int age,String degree,String direction){
this.name=name;
this.age=age;
this.degree=degree;
this.direction=direction;
}
}
public class Undergraduate extends Student{
String specialty;
public void show(){
System.out.println(name+age+degree+specialty);
}
Undergraduate(String name,int age,String degree,String specialty){
this.name=name;
this.age=age;
this.degree=degree;
this.specialty=specialty;
}
}
java中只能定义一个public class类,要怎么改
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