\cat programming

How to compile and run java programs

javac foo.java
java foo

Package?

If foo.java declares a package name at the top of the file:

package bar;

then all the related files should be in a "bar" directory and run it like the following under the parent directory of the "bar":

java [-classpath .] bar.foo

sizeof?

There is no sizeof implementation for Java because all primitives have the same sizes over all JVM.