Java packages com and org(Java 包 com 和 org)

What is the purpose of defining a package in a Java file?(在 Java 文件中定义包的目的是什么?)

Are there best practices for (Java) package organization?((Java)包组织有最佳实践吗?)

What is the default package in which my classes are put if I don#39;t specify it?(如果我不指定，我的课程放在哪个默认包中?)

Java: Subpackage visibility?(Java:子包可见性?)

How to include the Spongy Castle JAR in Android?(如何在 Android 中包含 Spongy Castle JAR?)

Why should java package name be lowercase?(java包名为什么要小写?)

What strategy do you use for package naming in Java projects and why?(您在 Java 项目中使用什么策略来命名包，为什么?)

How to compile java package structures using javac(如何使用 javac 编译 java 包结构)

How to wildcard include JAR files when compiling?(编译时如何通配符包含 JAR 文件?)

How to run a .class file that is part of a package from cmd?(如何从 cmd 运行作为包一部分的 .class 文件?)

Why subclass in another package cannot access a protected method?(为什么另一个包中的子类不能访问受保护的方法?)

Why can#39;t my subclass access a protected variable of its superclass, when it#39;s in a different package?(为什么我的子类不能访问其超类的受保护变量，当它位于不同的包中时?)

How to get current class name including package name in Java?(如何在Java中获取当前类名，包括包名?)

How to use and package a JAR file with my Android app?(如何在我的 Android 应用中使用和打包 JAR 文件?)

URLClassLoader and accessibility of package-private methods(URLClassLoader 和包私有方法的可访问性)

Gradle - What is a non-zero exit value and how do I fix it?(Gradle - 什么是非零退出值，我该如何解决?)

Is there any way to integrate Eclipse with Gradle in Android project?(有没有办法在 Android 项目中将 Eclipse 与 Gradle 集成?)

Google material design library error Program type already present: android.support.v4.app.INotificationSideChannel$Stub$Proxy(谷歌材料设计库错误程序类型已经存在:android.support.v4.app.INotificationSideChannel$Stub$Proxy)

Peer not authenticated while importing Gradle project in eclipse(在 Eclipse 中导入 Gradle 项目时对等体未通过身份验证)