declare.java

myassembler（大学作业）

public class Declare extends Statement {
   private String name;

   public Declare(String v) {
      name = new String(v);
   }

   public void run() throws ExecutionException {
      if (state.containsKey(name)) throw new ExistingVariableException(name);
      state.put(name, new Integer(0));
   }

   public Object clone() {
      return new Declare(name);
   }

   public String toString() {
      return labelling()+"DECLARE " + name + "\n";
   }

}