( --> ) 
Filling Slots
The slots are instantiated as follows in the HelloWorld  program.
- <?CLASS> --> HelloWorld 
 
- <?NAME> --> blue 
 
- <?LINE> --> Traditional starter 
 
- <?DESCRIPTION> --> Print the message 
 "Hello world!" to the standard output stream.
 
- <?NEEDS> -->  
 
- <?PROGRAM> --> IO.println("Hello world!");