four

Hello/.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

Hello/.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

Hello/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/thirdTest2.iml" filepath="$PROJECT_DIR$/thirdTest2.iml" />
+    </modules>
+  </component>
+</project>

Hello/src/Main.java

@@ -0,0 +1,48 @@
+interface WeatherState{
+    void showState();
+}
+class sunday implements WeatherState{
+    @Override
+    public void showState() {
+        System.out.println("今天是个大晴天！");
+    }
+}
+class cloudy implements WeatherState{
+    public void showState() {
+        System.out.println("今天是多云或者阴天！");
+    }
+}
+class rainy implements WeatherState{
+    public void showState() {
+        System.out.println("今天会下雨！");
+    }
+}
+class snowy implements WeatherState{
+    public void showState() {
+        System.out.println("今天会下雪！");
+    }
+}
+class Weather{
+    WeatherState state;
+    public Weather(WeatherState state){
+        this.state=state;
+    }
+    public void show(){
+        state.showState();
+    }
+}
+public class Main {
+    public static void testTrial(){
+        Weather weather = new Weather(new sunday());
+        weather.show();
+        weather = new Weather(new cloudy());
+        weather.show();
+        weather = new Weather(new rainy());
+        weather.show();
+        weather = new Weather(new snowy());
+        weather.show();
+    }
+    public static void main(String[] args) {
+        testTrial();
+    }
+}

Hello/thirdTest2.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

README.md

@@ -1,2 +0,0 @@
-# cxt_gitpratices
-

test1.txt

@@ -1,2 +0,0 @@
-111
-222