You can change the version of Java™ used
in a Java EE project by changing the value of the Java facet.
The Java facet
applies only to J2EE projects. To set the Java compiler level of a non-Java EE project,
such as a Java project, see
To change the Java compiler
version, complete the following steps:
In the Project Explorer view of the Java EE perspective, right-click the project
and then select Properties.
Select the Project Facets page in the in
the Properties window. This page lists the facets in the project
and their versions.
Click Modify Project.
Double click the version number next to theJava facet
to select a different level of Java compiler.
Click Finish to close the Modify Faceted
Project window and then click OK.