So you just downloaded the ubiquitous Java HelloWorld and you run java HelloWord after you compile it of course with “javac HelloWorld.java” and you are presented with this error message :
Error: Could not find or load main class HelloWorld
Cause: Apparently the folder that you are running the java application from, needs to be in your CLASSPATH (does not quite make sense) but i will be looking for a better explanation.
Add ":." to your CLASSPATH (Dont use the double quotes)
java -cp . HelloWorld
Remeber the dot(.) refers to the current directory.