To view this property page, right-click on a project and choose Properties. In the Properties window Build category, choose Compiling.
This page enables you to set the following options:
Generate Debugging Info. If checked, the compiler generates line numbers and source files information. This is the -g option in javac. If unchecked, no debugging information is generated (the -g:none option in javac).
Compile with Optimization. If checked, the compiled application is optimized for execution. This is the -O option in javac. Optimizing can slow down compilation, produce larger class files, and make the program difficult to debug.
Report Uses of Deprecated APIs. If checked, the compiler lists each use or override of a deprecated member or class. This is the -deprecated option in javac. If unchecked, the compiler shows only the names of source files that use or override deprecated members or classes.
Encoding. Overrides default encoding used by preprocessor and compiler. The default value is the default encoding used by your VM.