Syntax error parameterized types are only available if source level is 5.0

Syntaxerror,parameterizedtypesareonlyavailableifsourcelevelis5.0编译级别问题1.在eclipse中菜单Window----preferences----java-----compiler把右边中的Compilercompliancelevel改为5.02.就右击项目，修改properties，找到javacompiler修改compilercompliancelevel为5.0