Building projects with command line tools

Create a .java file

Create a program that uses the psychWithJava package. Here, let's use the sample HelloPsychophysicist.java program. Save the HelloPsychophysicist.java, and two auxilary image files psychophysik.png and fechner.png to your local disk.

Compiling

Open a terminal, or command window. Navigate to the directory where you downloaded the files. Type

javac HelloPsychophysicist.java

and press enter. If there were no errors you should have a file named HelloPsychophysicist.class in your directory.

Running

To execute the java program you just compiled, type

java HelloPsychophysicist

and press enter. Note that when you execute java programs you give only the name of the class without the .class extension.