Question

I have both Java 6 and Java 7 installed in my computer running Windows XP sp3. I have entered path in the environment variables (PATH, JAVA_HOME) in My computer-> Properties. But when I give

java -version

I still get the following text

java version “1.7.0_09”
Java(TM) SE Runtime Environment (build
1.7.0_09-b05) Java HotSpot(TM) Client VM (build 23.5-b02, mixed mode, sharing)

However, when I try

javac -version

I get

javac 1.6.0_03

How can I change the runtime from Java 7 to Java 6? When I compile my program in eclipse using ant, I get the following

Warning: java\util\List.class(java\util:List.class): major version 51
is newer than 50, the highest major version supported by this
compiler. [javac] It is recommended that the compiler be upgraded.

Answer 1

Path has the JRE first, thus the java -version and the JDK second, thus the javac -version. Check your PATH variable.

If you want the JDK version, put it first on the PATH.