Developers use different editions of the Java platform to create Java programs that run on desktop computers, web browsers, web servers, mobile information devices (such as feature phones), and embedded devices (such as television set-top boxes). Java Platform, Standard Edition (Java SE): The Java platform for developing applications, which are stand-alone programs that run on desktops. Java SE is also used to develop applets, which are programs that run in web browsers. Java Platform, Enterprise Edition (Java EE): The Java platform for developing enterprise-oriented applications and servlets, which are server programs that conform to Java EE’s Servlet API. Java EE is built on top of Java SE. Java Platform, Micro Edition (Java ME): The Java platform for developing MIDlets, which are programs that run on mobile information devices, and Xlets, which are programs that run on embedded devices.

SE(JDK)拥有您学习Java所需要的所有库。 我推荐Netbeans IDE，因为它直接与Oracle的SE(JDK)捆绑在一起。 不要忘记设置“path”和“classpath”变量，特别是如果您打算尝试命令行。 对于64位系统，在C:\Windows\system32;之前插入“系统路径”，例如C:\Program Files (x86)\Java\jdk1.7.0变量;将系统导向您的JDK。

希望这能有所帮助。

Developers use different editions of the Java platform to create Java programs that run on desktop computers, web browsers, web servers, mobile information devices (such as feature phones), and embedded devices (such as television set-top boxes). Java Platform, Standard Edition (Java SE): The Java platform for developing applications, which are stand-alone programs that run on desktops. Java SE is also used to develop applets, which are programs that run in web browsers. Java Platform, Enterprise Edition (Java EE): The Java platform for developing enterprise-oriented applications and servlets, which are server programs that conform to Java EE’s Servlet API. Java EE is built on top of Java SE. Java Platform, Micro Edition (Java ME): The Java platform for developing MIDlets, which are programs that run on mobile information devices, and Xlets, which are programs that run on embedded devices.

如果我是你，我会安装Java SE SDK。安装完成后，请确保设置了JAVA_HOME环境变量，并将%JAVA_HOME%\bin dir添加到路径中。

Java SE是构建Java EE的基础。

Java ME是用于移动设备的SE的一个子集。

因此，您应该为项目安装Java SE。

是的，从Java SE开始。你提到的所有任务都可以用它来处理。

Java ME是移动版，EE是企业版;这些是标准版的专业/扩展版本。