public class SL_WriteNode extends ParseNode {
  // child 0: expr (to write)

  public int getType() { return G_WRITE; }
  public ParseNode interpret(SymbolTable st) throws InterpretException {
    SL_ExprNode child = (SL_ExprNode) getChild(0);
    SL_NumberNode value = (SL_NumberNode) child.interpret(st);
    System.out.println(value.getValue().toString());
    return null;  
  }
}