Package org.apache.lucene.util.collections

Examples of org.apache.lucene.util.collections.IntToDoubleMap.keyIterator()

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    int length = 100;
    for (int i = 0; i < length; ++i) {
      map.put(i*64, 100 + i);
    }
    HashSet<Integer> keySet = new HashSet<Integer>();
    for (IntIterator iit = map.keyIterator(); iit.hasNext(); ) {
      keySet.add(iit.next());
    }
    assertEquals(length, keySet.size());
    for (int i = 0; i < length; ++i) {
      assertTrue(keySet.contains(i * 64));
 
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    for (int i = 0; i < length; ++i) {
      assertTrue(map.containsValue(i + 100));
      assertTrue(map.containsKey(i*64));
    }
   
    for (IntIterator iit = map.keyIterator(); iit.hasNext(); ) {
      iit.next();
      iit.remove();
    }
    assertTrue(map.isEmpty());
    assertEquals(0, map.size());
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