@Override public String toString(){
  final StringBuffer nodeString=new StringBuffer();
  for (  final Instruction instruction : m_instructions) {
    nodeString.append(instruction.toString());
    nodeString.append('\n');
  }
  return nodeString.toString();
}

@ Override public String toString ( ) { final StringBuffer nodeString = new StringBuffer ( ) ; for ( final Instruction instruction : m_instructions ) { nodeString . append ( instruction . toString ( ) ) ; nodeString . append ( '\n' ) ; } return nodeString . toString ( ) ; }
returns a string representation of the code node .
