王烊烊202302050115w5

Person/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.example</groupId>
+  <artifactId>Person</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>Person</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

Person/src/main/java/org/example/App.java

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+package org.example;
+
+/**
+ * Hello world!
+ *
+ */
+public class App 
+{
+    public static void main( String[] args )
+    {
+        System.out.println( "Hello World!" );
+    }
+}

Person/src/test/java/org/example/AppTest.java

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+package org.example;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}

w5/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.example</groupId>
+  <artifactId>w5</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>BasicProblem</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

w5/src/main/java/com/practice/advanced_problem/Bike.java

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+package com.practice.advanced_problem;
+
+public class Bike extends Vehicle{
+    @Override
+    public void run() {
+        System.out.println("自行车在非机动车道上行驶。");
+    }
+}

w5/src/main/java/com/practice/advanced_problem/Car.java

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+package com.practice.advanced_problem;
+
+public class Car extends Vehicle{
+    @Override
+    public void run(){
+        System.out.println("汽车在机动车道行驶。");
+    }
+}

w5/src/main/java/com/practice/advanced_problem/Main.java

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+package com.practice.advanced_problem;
+
+public class Main {
+    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 v : vehicles){
+            v.run();
+        }
+    }
+}

w5/src/main/java/com/practice/advanced_problem/Truck.java

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+package com.practice.advanced_problem;
+
+public class Truck extends  Vehicle{
+    @Override
+    public  void run(){
+        System.out.println("卡车在货运通道上行驶。");
+    }
+}

w5/src/main/java/com/practice/advanced_problem/Vehicle.java

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+package com.practice.advanced_problem;
+
+public abstract class Vehicle {
+    public abstract void run();
+}

w5/src/main/java/com/practice/basic_problem/Circle.java

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+package com.practice.basic_problem;
+
+public class Circle extends Shape {
+    @Override
+    public void draw(){
+        System.out.println("圆形形状: ○");
+    }
+}

w5/src/main/java/com/practice/basic_problem/Main.java

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+package com.practice.basic_problem;
+
+public class Main {
+    public static void drawShape(Shape s){
+        s.draw();
+    }
+    public static void main(String []args){
+        Shape circle=new Circle();
+        Shape rect=new Rectangle();
+        drawShape(circle);
+        drawShape(rect);
+    }
+}

w5/src/main/java/com/practice/basic_problem/Rectangle.java

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+package com.practice.basic_problem;
+
+public class Rectangle extends Shape {
+    @Override
+    public void draw(){
+        System.out.println("矩形: ▭");
+    }
+}

w5/src/main/java/com/practice/basic_problem/Shape.java

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+package com.practice.basic_problem;
+
+public class Shape {
+    public void draw() {
+        System.out.println("绘制任意图形");
+    }
+}

w5/src/main/java/org/example/App.java

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+package org.example;
+
+/**
+ * Hello world!
+ *
+ */
+public class App 
+{
+    public static void main( String[] args )
+    {
+        System.out.println( "Hello World!" );
+    }
+}

w5/src/test/java/org/example/AppTest.java

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+package org.example;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}

封装继承多态/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.example</groupId>
+  <artifactId>封装继承多态</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <packaging>jar</packaging>
+
+  <name>untitled</name>
+  <url>http://maven.apache.org</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

封装继承多态/src/main/java/org/example/App.java

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+package org.example;
+
+/**
+ * Hello world!
+ *
+ */
+public class App 
+{
+    public static void main( String[] args )
+    {
+        System.out.println( "Hello World!" );
+    }
+}

封装继承多态/src/test/java/org/example/AppTest.java

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+package org.example;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}