java設計學生類並進行測試

package test1;

import java.util.Scanner;
class Student{
	String name;
	double grade;//包含的兩個屬性
	public  Student() {//無參的構造方法
		
	}
	public Student(String name,double grade) {
		this.name=name;
		this.grade=grade;//賦值
	}//有參的構造方法
	public void setName(String name) {
		this.name=name;
	}//設定值
	public String getName() {
		return name;//獲取值
	}
	public void setGrade(double grade) {
		this.grade=grade;
	}//設定值
	public double getGrade() {
		return grade;//獲取值
	}
	
	
}

public class Main {
	public static void main(String[] args) {
	Student stu1=new Student();
	stu1.setName("zhangsan");
	stu1.setGrade(99);
	Student stu2=new Student("lisi",100);
	//System.out.println(stu1.name+" " +stu1.grade);與下一行輸出結果相同
		System.out.println(stu1.getName()+" " +stu1.getGrade());
        System.out.println(stu2.name+" " +stu2.grade);

	}
}

結果輸出

zhangsan 99.0
lisi 100.0