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Project specific Compiler Compliance level and Settings These settings will be effective for new projects. "When selecting 1.8 compliance, make sure to have a compatible JRE installed and activated (currently 1.7)" If the version of compiler compliance level and Installed JRE is different, eclipse gives the messages as follows. We can also change the settings to preserve unused local variables and to store information about method parameters introduced in java 8

Step 5: We can also change the settings here for class file generation such as to add variable attribute, line number, source file name to generated class file which is used by the debugger. Step 4: To change default compliance settings, we need to uncheck Use default compliance settings and set the compiler java version for. Step 3: Click on Add and select Standard VM and then click on Directory and select JRE home or JDK home. The activated JRE version and selected compiler compliance level must be same.įind the steps to install JRE in eclipse. Here on this page we will provide step wise demo to install JRE in eclipse as well as to change compiler compliance level and settings. In our demo we are using Eclipse Luna 4.4.2 version which supports compiler compliance level up to Java 8 i.e 1.8. The compiler compliance level in eclipse is available only up to that level of java version for which our eclipse version supports. We can install all the JREs versions in eclipse which are present in our operating system but we can activate only one at a time in eclipse IDE.

This page will provide how to change eclipse java version for compiler and JRE.