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Java > Open Source Codes > edu > rice > cs > util > sexp > NumberAtom


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33
34 package edu.rice.cs.util.sexp;
35
36 public class NumberAtom implements Atom {
37   private double _num;
38   private boolean _hasDecimals;
39   public NumberAtom(int num){
40     _num = (double)num;
41     _hasDecimals = false;
42   }
43   public NumberAtom(double num){
44     _num = num;
45     _hasDecimals = (num % 1 < 1e-12);
46   }
47   public boolean hasDecimals() { return _hasDecimals; }
48   public int intValue() { return (int)_num; }
49   public double doubleValue() { return _num; }
50   
51   /**
52    * Visitor hook for the NumberAtom
53    * @param v the visitor
54    * @return result of the given algorithm
55    */
56   public <Ret> Ret accept(SExpVisitor<Ret> v){
57     return v.forNumberAtom(this);
58   }
59   
60   public String JavaDoc toString(){
61     if (_hasDecimals) {
62       return "" + doubleValue();
63     }
64     else {
65       return "" + intValue();
66     }
67   }
68 }
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