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‎Generic/README.md‎

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‎Generic/src/com/cpucode/java/Generic1.java‎

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‎Generic/src/com/cpucode/java/Generic5.java‎

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‎Generic/src/com/cpucode/java/Generic6.java‎

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‎generics/README.md‎

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# [泛型](../README.md)
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## 文件目录
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--------------------
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## [泛型](src/main/java/com/cpucode/generics)
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- [x] [Generic1__错误类型转换异常](src/main/java/com/cpucode/generics/Generic1.java)
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- [x] [Generic2__泛型的引入](src/main/java/com/cpucode/generics/Generic2.java)
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- [x] [Generic3__定义和使用含有泛型的类](src/main/java/com/cpucode/generics/Generic3.java)
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- [x] [Generic4__泛型的方法](src/main/java/com/cpucode/generics/Generic4.java)
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- [x] [Generic5__泛型的接口](src/main/java/com/cpucode/generics/Generic5.java)
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- [x] [Generic6__泛型通配符](src/main/java/com/cpucode/generics/Generic6.java)
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- [x] [Generic7__受限泛型](src/main/java/com/cpucode/generics/Generic7.java)
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- [返回目录](#文件目录)
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-------------
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- [返回顶层](../README.md)

‎generics/generics.iml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
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<output url="file://$MODULE_DIR$/target/classes" />
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>

‎generics/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.cpucode</groupId>
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<artifactId>generics</artifactId>
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<version>1.0-SNAPSHOT</version>
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<build>
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<plugins>
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<!-- java编译插件 -->
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.2</version>
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<configuration>
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<source>1.8</source>
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<target>1.8</target>
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<encoding>UTF-8</encoding>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎generics/src/main/java/com/cpucode/generics/Generic1.java‎

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package com.cpucode.generics;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Iterator;
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public class Generic1 {
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public static void main(String[] args) {
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Collection coll = new ArrayList();
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coll.add("cpucode");
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coll.add("cpu");
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//由于集合没有做任何限定，任何类型都可以给其中存放
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coll.add(5);
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Iterator it = coll.iterator();
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while (it.hasNext()){
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//需要打印每个字符串的长度,就要把迭代出来的对象转成String类型
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String str = (String) it.next();
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System.out.println(str.length());
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}
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}
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}
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/*
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7
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3
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Exception in thread "main" java.lang.ClassCastException: c
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*/

Generic/src/com/cpucode/java/Generic2.java renamed to generics/src/main/java/com/cpucode/generics/Generic2.java

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* @CSDN: [https://blog.csdn.net/qq_44226094](https://blog.csdn.net/qq_44226094)
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* @Gitbook: [https://923992029.gitbook.io/cpucode/](https://923992029.gitbook.io/cpucode/)
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*/
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package Generic;
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package com.cpucode.generics;
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import java.util.ArrayList;
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import java.util.Collection;

Generic/src/com/cpucode/java/Generic3.java renamed to generics/src/main/java/com/cpucode/generics/Generic3.java

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/*
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* @由于个人水平有限, 难免有些错误, 还请指点:
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* @Author: cpu_code
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* @Date: 2020-09-16 17:56:00
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* @LastEditTime: 2020-09-16 18:01:40
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* @FilePath: \java\Generic\Generic3.java
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* @Gitee: [https://gitee.com/cpu_code](https://gitee.com/cpu_code)
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* @Github: [https://github.com/CPU-Code](https://github.com/CPU-Code)
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* @CSDN: [https://blog.csdn.net/qq_44226094](https://blog.csdn.net/qq_44226094)
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* @Gitbook: [https://923992029.gitbook.io/cpucode/](https://923992029.gitbook.io/cpucode/)
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*/
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package Generic;
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package com.cpucode.generics;
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public class Generic3 {
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public static void main(String[] args) {
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public MVP getMvp() {
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return mvp;
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}
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}
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/*
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cpucode
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100
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*/
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}

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