每次因為版本問題，都會網上搜索一下，耽誤時間，腦子又不好使，還是用筆記錄下來吧。
本文轉載自：http://blog.csdn.net/nocol123/article/details/65938441、
1、eclipse版本對應的jdk需求:
Installing Eclipse is relatively easy, but does involve a few steps and software from at least two different sources. Eclipse is a Java-based application and, as such, requires a Java runtime environment (JRE) in order to run.
Eclipse 4.6 (Neon)
Eclipse 4.6 (Neon)is scheduled for release on June 22, 2016.
Consider using the Installer. Please see 6 Steps to Install Eclipse.
A Java 8 JRE/JDK is required to run all Neon packages based on Eclipse 4.6. The reasoning behind requiring Java 8 are discussed here.
Eclipse 4.5 (Mars)
Eclipse 4.5 (Mars) was released on June 24, 2015.
Consider using the new Installer! Please see 6 Steps to Install Eclipse.
A Java 7 JRE/JDK is required for all Mars package downloads based on Eclipse 4.5. Information concerning tested configurations for Eclipse 4.5 is providedhere.
Eclipse 4.4 (Luna)
Eclipse 4.4 (Luna) was released on June 25, 2014.
A Java 7 JRE/JDK is required for most of the Luna package downloads based on Eclipse 4.4. Information concerning tested configurations for Eclipse 4.4 is provided here.
Eclipse 4.3 (Kepler)
Eclipse 4.3 (Kepler) was released in June 2013.
A Java 6 JRE/JDK is recommended for Eclipse 4.3. More information concerning tested configurations for Eclipse 4.3 is provided here.
2、eclipse各版本的介紹:
從2006年起，Eclipse基金會每年都會安排同步發布（simultaneous release）。
同步發布主要在6月進行，並且會在接下來的9月及2月釋放出SR1及SR2版本。
3.eclipse各版本下載地址：