|
| | To compile a Java source file, you type the following to invoke the
bare SDK Java compiler:
javac HelloWorld.java
(the .java filetype is
required -- HelloWorld.java refers to the filename)
If successful, this produces a HelloWorld.class file from the
HelloWorld.java file.
The general syntax for invoking the javac compiler is:
javac [ options ] [ sourcefiles ] [ @files ]
where:
| Command line parameter |
Meaning |
options
|
Command-line options. |
sourcefiles
|
One or more source files to be compiled (such as MyClass.java). |
@files
|
One or more files that list source files. |
Options include (this is a subset of the full set of options; see
the Java 2
SDK Tools and Utilities documentation for details):
| Option |
Explanation |
| -classpath
path
|
Sets the user class path, overriding the user class path in the CLASSPATH
environment variable.
If neither CLASSPATH or -classpath is specified, the
user class path consists of the current directory. |
| -d
directory |
Sets the destination directory for class files. If a class
is part of a package, javac puts the class file in a
subdirectory reflecting the package name, creating directories
as needed. For example, if you specify -d c:\myclasses
and the class is called com.mypackage.MyClass,
then the class file is called c:\myclasses\com\mypackage\MyClass.class.
If -d is not specified, javac puts the class
file in the same directory as the source file. |
| -deprecation |
Shows a description of each use or override of a deprecated
member or class. Without -deprecation, javac
shows the names of source files that use or override
deprecated members or classes. |
| -g |
Generates all debugging information, including local
variables. By default, only line number and source file
information is generated. |
| -sourcepath
sourcepath
|
Specifies the source code path to search for class or interface
definitions. As with the user class path, source path entries are
separated by semicolons (;) and can be directories, JAR
archives, or ZIP archives. If packages are used, the local path
name within the directory or archive must reflect the package
name.
Note that classes found through the classpath are subject to
automatic recompilation if their sources are found. |
| -verbose |
Verbose output. This includes information about each class
loaded and each source file compiled. |
|
