public void bail(String message,boolean printUsageStatement){
  Debug.output(message);
  if (printUsageStatement)   printUsage();
  System.exit(0);
}

public void bail ( String message , boolean printUsageStatement ) { Debug . output ( message ) ; if ( printUsageStatement ) printUsage ( ) ; System . exit ( 0 ) ; }
called if something is messed up . prints a message , and the usage statement , if desired .
