1.Eclipse 4.6 (Neon)---需要JDK1.8版本，官网解释如下
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Eclipse 4.6 (Neon)isscheduled for release on June 22, 2016.
A Java 8 JRE/JDK is required to run all Neon packages based on Eclipse 4.6. The reasoning behind requiring Java 8 are discussedhere.
2.Eclipse 4.5 (Mars) ---需要JDK1.7及以上版本，官网解释如下
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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.
3.Eclipse 4.4 (Luna) ---需要JDK1.7及以上版本，官网解释如下
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 providedhere.
4.Eclipse 4.3 (Kepler) ---需要JDK1.6及以上版本，官网解释如下
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 providedhere