fr_b02 / petri / src / element / Place.java @ 4
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1 | 3 | a19coudr | package element; |
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2 | 2 | a19coudr | |
3 | 4 | a19coudr | |
4 | |||
5 | 2 | a19coudr | public class Place { |
6 | |||
7 | private int token; |
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8 | |||
9 | 4 | a19coudr | @SuppressWarnings("serial") |
10 | public class UndefinedToken extends Exception{ |
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11 | public UndefinedToken() {
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12 | super("the token cannot take a value <0"); |
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13 | } |
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14 | |||
15 | } |
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16 | |||
17 | public Place(int token) throws UndefinedToken{ |
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18 | if(token<0) { |
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19 | throw new UndefinedToken(); |
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20 | } |
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21 | 2 | a19coudr | this.token=token;
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22 | } |
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23 | |||
24 | public int getToken() { |
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25 | return this.token; |
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26 | } |
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27 | public String toString() { |
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28 | return "Place Token : "+token; |
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29 | } |
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30 | |||
31 | public boolean isEmpty() { |
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32 | return (this.token==0); |
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33 | } |
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34 | |||
35 | public void changeToken(int i) { |
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36 | token += i; |
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37 | } |
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38 | |||
39 | public boolean equals(Object o) { |
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40 | if((o instanceof Place) &&(System.identityHashCode(((Place)o))==System.identityHashCode(this))) { |
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41 | return true; |
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42 | } |
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43 | else {
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44 | return false; |
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45 | } |
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46 | } |
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47 | |||
48 | } |