Generics have been around since 1.5.

C:\ documents and settings \ administrator & gtjavac

Usage: javac

Among them, possible options include:

-g Generate all debugging information

-g:none does not generate any debugging information.

-g:{lines, vars, source} only generates some debugging information.

-nowarn does not generate any warnings.

-verbose outputs a message about what the compiler is doing.

-deprecation output uses the source location of the expired API.

-class path & lt； Path > specifies the location to find user class files and comment handlers.

-CP & lt； Path > specifies the location to find user class files and comment handlers.

-source path & lt； Path > specifies where to find the input source file.

-boot class path & lt； Path > overwrites the location of the boot class file.

-ext dirs & lt； Directory > overwrite the location where the extension is installed.

-Endorser < Directory > the location of the standard path that overrides the signature.

-proc:{none, only} controls whether annotation processing and/or compilation is performed.

-processor & ltclass 1 >[, & ltclass2 & gt, & ltclass3 & gt...] The name of the comment handler to run; Bypass the default search process

-processor path & lt； Path > specifies where the annotation handler can be found.

-parameters generates metadata for reflection of method parameters.

-d & lt； Directory > specifies the location where the generated class file is placed.

-s & lt； Directory > specifies the location where the generated source files are placed.

-h & lt； Directory > specifies the location where the generated native header files are placed.

-implicit:{none, class} Specifies whether to generate class files for implicitly referenced files.

-encoding < code > specifies the character encoding used by the source file.

-source & lt； Distribution > provides source code compatibility with the specified distribution.

-target & lt； Distribution > generate a class file for a specific virtual machine version.

-profile < profile > please ensure that the API used is available in the specified profile.

-Version version information

-help outputs a summary of standard options.

-Keyword [= value] option passed to the comment handler

-X outputs a summary of non-standard options.

-J & lt； Mark > Passes pass directly to the runtime system.

-Werror terminates compilation when a warning appears.

@< file name > read options and file names from a file.