IMPORTANT

• All of the following commands assumes the Java compiler (javac) and Java Virtual Machine (java) locations are known to the shell/Operating System.

Compiling Java Source From the Command Line

• How to compile a single source file:

1. Open a shell on the machine you wish to compile on.
2. Change directory (cd) to the directory that contains the source file(s) (.java) that you want to compile.
3. Enter the following command (modifying the source file name as appropriate):

                           javac YourSourceFile.java      

• How to compile multiple source files by name:

1. Open a shell on the machine you wish to compile on.
2. Change directory (cd) to the directory that contains the source file(s) (.java) that you want to compile.
3. Enter the following command (modifying the source names as appropriate)

               javac FileOne.java FileTwo.java FileThree.java

• How to compile multiple source files using wildcards - if you have all of the source files for a single program in the same directory you can compile them all with a single command without having to specify all of their names, to do so:

1. Open a shell on the machine you wish to compile on.
2. Change directory (cd) to the directory that contains the source file(s) (.java) that you want to compile.
3. Enter the following command:

             javac *.java

• How to compile using compiler flags:

1. Open a shell on the machine you wish to compile on.
2. Change directory (cd) to the directory that contains the source file(s) (.java) that you want to compile.
3. Enter the following command (note that you can compile single or multiple files by name or wildcards):

             javac -Xlint:unchecked SourceFile.java

Running Java Programs From the Command Line

• How to run normally (without assertion statements enabled):

1. Open a shell on the machine you wish to run on.
2. Change directory (cd) to the directory that contains the program you want to run.
3. Make sure the program has been compiled
4. Enter the following command (note that the file name specified must be a .class file that contains a main method):

                        java YourClassName

• How to run with assertion statements enabled:

1. Open a shell on the machine you wish to run on.
2. Change directory (cd) to the directory that contains the program you want to run.
3. Make sure the program has been compiled
4. Enter the following command (note that the file name specified must be a .class file that contains a main method):

                        java -ea YourClassName