IntList


1   /*
2    * Copyright  2000-2004 The Apache Software Foundation
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License"); 
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License. 
15   *
16   */ 
17  package org.apache.bcel.verifier.statics;
18  
19  
20  import java.util.ArrayList  ;
21  import java.util.List  ;
22  
23  /**
24   * A small utility class representing a set of basic int values.
25   *
26   * @version $Id: IntList.java 386056 2006-03-15 11:31:56Z tcurdt $
27   * @author Enver Haase
28   */
29  public class IntList{
30      /** The int are stored as Integer objects here. */
31      private List   theList;
32      /** This constructor creates an empty list. */
33      IntList(){
34          theList = new ArrayList  ();
35      }
36      /** Adds an element to the list. */
37      void add(int i){
38          theList.add(new Integer  (i));
39      }
40      /** Checks if the specified int is already in the list. */
41      boolean contains(int i){
42          Integer  [] ints = new Integer  [theList.size()];
43          theList.toArray(ints);
44          for (int j=0; j<ints.length; j++){
45              if (i == ints[j].intValue()) {
46                  return true;
47              }
48          }
49          return false;
50      }
51  }
52
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