上传了实验四,已确认无敏感信息

实验4/src/Task5/Person.java

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+//Person.java
+package Task5;
+
+public abstract class Person {
+    String name;
+    String gender;
+    String birthday;
+
+    public abstract void printInfo();
+}

实验4/src/Task5/Student.java

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+//Student.java
+package Task5;
+
+public class Student extends Person {
+    String school;
+    String id;
+    String grade;
+
+    public void printInfo() {
+        System.out.println("name:\t" + this.name);
+        System.out.println("gender:\t" + this.gender);
+        System.out.println("birthday:\t" + this.birthday);
+        System.out.println("school:\t" + this.school);
+        System.out.println("id:\t" + this.id);
+        System.out.println("grade\t" + this.grade);
+    }
+}

实验4/src/Task5/Teacher.java

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+//Teacher.java
+package Task5;
+
+public class Teacher extends Person {
+    String school;
+    String id;
+
+    public void printInfo() {
+        System.out.println("name:\t" + this.name);
+        System.out.println("gender:\t" + this.gender);
+        System.out.println("birthday:\t" + this.birthday);
+        System.out.println("school:\t" + this.school);
+        System.out.println("id:\t" + this.id);
+    }
+}

实验4/src/Task5/TestPerson.java

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+//TestPerson.java
+package Task5;
+
+public class TestPerson {
+    public static void main(String[] args) {
+        Student s1 = new Student();
+        s1.name = "Jason Fate Chen";
+        s1.gender = "male";
+        s1.birthday = "May.5th.2005";
+        s1.school = "XJIT";
+        s1.id = "202301130071";
+        s1.grade = "1";
+        s1.printInfo();
+        Teacher t1 = new Teacher();
+        t1.name = "White";
+        t1.gender = "female";
+        t1.birthday = "Mar.7th.1993";
+        t1.school = "Tsinghua";
+        t1.id = "199303071145";
+        t1.printInfo();
+    }
+}