上传文件至 ''

基础题-Shape.txt

@@ -0,0 +1,30 @@
+基础题—Shape类
+
+class Shape {
+    public void draw() {
+        System.out.println("绘制形状");
+    }
+}
+class Circle extends Shape {
+    @Override
+    public void draw() {
+        System.out.println("绘制圆形");
+    }
+}
+class Rectangle extends Shape {
+    @Override
+    public void draw() {
+        System.out.println("绘制矩形");
+    }
+}
+public class ShapeDemo {
+    public static void drawShape(Shape s) {
+        s.draw();
+    }
+    public static void main(String[] args) {
+        Shape circle = new Circle();
+        Shape rectangle = new Rectangle();
+        drawShape(circle);
+        drawShape(rectangle);
+    }
+}

挑战题—Person.txt

@@ -0,0 +1,20 @@
+挑战题—Person
+
+public class PersonManagerTest {
+    public static void main(String[] args) {
+        PersonManager manager = new PersonManager();
+        Student student1 = new Student("张三", 18, "S001", 95.5);
+        Student student2 = new Student("李四", 19, "S002", 88.0);
+        
+        Teacher teacher1 = new Teacher("王老师", 35, "T001", "数学");
+        Teacher teacher2 = new Teacher("李老师", 40, "T002", "英语");
+        
+        manager.addPerson(student1);
+        manager.addPerson(student2);
+        manager.addPerson(teacher1);
+        manager.addPerson(teacher2);
+        
+        manager.displayAllPersons();
+        manager.processSpecificAttributes();
+    }
+}

进阶题-Vehicle.txt

@@ -0,0 +1,33 @@
+进阶题——Vehicle
+abstract class Vehicle {
+    public abstract void run();
+}
+class Car extends Vehicle {
+    @Override
+    public void run() {
+        System.out.println("汽车在公路上行驶");
+    }
+}
+class Bike extends Vehicle {
+    @Override
+    public void run() {
+        System.out.println("自行车在道路上骑行");
+    }
+}
+class Truck extends Vehicle {
+    @Override
+    public void run() {
+        System.out.println("卡车在高速公路上运输货物");
+    }
+}
+public class VehicleDemo {
+    public static void main(String[] args) {
+        Vehicle[] vehicles = new Vehicle[3];
+        vehicles[0] = new Car();
+        vehicles[1] = new Bike();
+        vehicles[2] = new Truck();
+        for (Vehicle vehicle : vehicles) {
+            vehicle.run();
+        }
+    }
+}