What java version shall i use?

[DTaylorMedia]

Hi. I've not used minecraft forge in a while and i wanted to make a mod for 1.6.4 as well as 1.7 and 1.8, but I'm unsure what JDK i should use.

Will I have to use different JDK versions for each of them?

[Choonster]

Use JDK 8 for the ForgeGradle-based 1.7.10 and 1.8.x builds. Use JDK 7 for the ForgeGradle-based 1.6.4 builds (960-965) or JDK 8 for the most recent MCP-based 1.6.4 build (1345).

 

This tutorial explains how to get started and set up a ForgeGradle workspace.

[DTaylorMedia]

Ok, thanks for your help, and for the tutorial 

[LexManos]

You should always use the latest JDK to build with, but for the Minecraft environment you should TARGET Java 6 because that's what Minecraft itself targets.

Target it by using 'targetCompatibility = 1.6' in your build.gradle.