3

w2/Student.java

@@ -0,0 +1,24 @@
+public class Student {
+    public int ID;
+    public String name;
+    public int age;
+    public String major;
+    public Student(int ID,String name,int age,String major){
+        this.ID=ID;
+        this.name=name;
+        this.age=age;
+        this.major=major;
+    }
+    public void info(){
+        System.out.println("学生学号:"+ID);
+        System.out.println("学生姓名:"+name);
+        System.out.println("学生年龄:"+age);
+        System.out.println("学生专业:"+major);
+    }
+    public static void main (String[] args){
+        Student mary=new Student(20220933,"Mary_Jane",22,"computer_science");
+        mary.info();
+        Student John=new Student(20210288,"John Shark",23,"data science");
+        John.info();
+    }
+}