code: @Pure
  	@SuppressWarnings("static-method")
  	public boolean isParameterExists(int index) {
  		final String[] params = getCommandLineParameters();
  		return index >= 0 && index < params.length && params[index] != null;
  	}
docs: Replies if the given index corresponds to a command line parameter.
  
  @param index position of the parameter to test.
  @return <code>true</code> if the given index corresponds to a parameter,
  otherwise <code>false</code>
  @throws IndexOutOfBoundsException if the given index is out of bounds.