Question

It gives an error “Could not find the main class: filename.java” How do I set the filename to be independent of the class names?

Answer 1

Short Answer: You can’t. One class per file is the java way. Accept that or find another language.

Longer Answer: You can but you probably don’t want to.

If you have one public class and x number of non-public classes, you can put the all in the same file by nesting the non-public classes inside the public class. For example (in BlowFish.java):

public class BlowFish
{
  class Hooty
  {
  }

  class Sushi
  {
  }
}