public class Test {

    public static void main(String[] args) {

        Student stu1 = new Student("li".90);

        Student stu2 = new Student("wang",80)

     }

}

//学生类

class Student {

    private String name;

    private double grade;

//建立一个学生的方法

  public Student() {

    }

   public Student(String name, double grade) {

        this.name = name;

        this.grade = grade;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public double getGrade() {

        return grade;

    }

    public void setGrade(double grade) {

        this.grade = grade;

    }

}