Java 学生类 Student 的属性获取和设置方法

public class Test{ public static void main(String [] args){

            Student  s  =  new  Student('zhang',  23,  74);
            s.display();
            
            s.setName('lisi');
            s.display();
    }

}

class Student{ private String name; private int age; private double grade;

    public  Student(String  name,  int  age,  double  grade){
            this.name  =  name;
            this.age  =  age;
            this.grade  =  grade;
    }
    
    public  String  getName(){
            return name;
    }
    
    public  void  setName(String  name){
            this.name = name;
    }
    
    public  void  display(){
            System.out.println('Name='  +  name);
    }

}