Examples of java.util.Hashtable.keySet()

java.util.Hashtable.keySet()
Returns a {@link Set} view of the keys contained in this map.The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. If the map is modified while an iteration over the set is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations. @since 1.2

      //      assertEquals(oldFieldMap.keySet(), newFieldMap.keySet());
      //      assertEquals(oldFieldMap.keySet(), newFieldMap.keySet());


      ArrayList oldFieldTags = new ArrayList(oldFieldMap.keySet());
      Collections.sort(oldFieldTags);
      ArrayList newFieldTags = new ArrayList(newFieldMap.keySet());
      Collections.sort(newFieldTags);
      assertEquals(oldFieldTags, newFieldTags);


      for (int j = 0; j < oldFieldTags.size(); j++)
      {

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    }


    private List getIgnorableActions(MessageContext msgContext) {
        SOAPService soapService = msgContext.getService();
        Hashtable options = soapService.getOptions();
        Iterator ite = options.keySet().iterator();
        List actionList = new ArrayList();
        while (ite.hasNext()) {
            String key = (String) ite.next();


            if (key.regionMatches(0, Constants.IGNORE_ACTION, 0, Constants.IGNORE_ACTION.length()))

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            int psrOffset = usr.getPersistPointersOffset();


            PersistPtrHolder ptr = (PersistPtrHolder)Record.buildRecordAtOffset(docstream, psrOffset);
            lst.add(new Integer(psrOffset));
            Hashtable entries = ptr.getSlideLocationsLookup();
            for (Iterator it = entries.keySet().iterator(); it.hasNext(); ) {
                Integer id = (Integer)it.next();
                Integer offset = (Integer)entries.get(id);


                lst.add(offset);
                offset2id.put(offset, id);

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            int psrOffset = usr.getPersistPointersOffset();


            PersistPtrHolder ptr = (PersistPtrHolder)Record.buildRecordAtOffset(docstream, psrOffset);
            lst.add(new Integer(psrOffset));
            Hashtable entries = ptr.getSlideLocationsLookup();
            for (Iterator it = entries.keySet().iterator(); it.hasNext(); ) {
                Integer id = (Integer)it.next();
                Integer offset = (Integer)entries.get(id);


                lst.add(offset);
            }

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                    byDir.put(parent, v);
                }
                v.addElement(thisLink);
            }
            // write a Properties file in each directory:
            for (Iterator dirs = byDir.keySet().iterator(); dirs.hasNext();) {
                File dir = (File) dirs.next();
                Vector linksInDir = (Vector) byDir.get(dir);
                Properties linksToStore = new Properties();


                // fill up a Properties object with link and resource names:

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    Map map = new Hashtable(101);
    map.put(new Integer(1), "1");
    map.put(new Integer(102), "102");
    map.put(new Integer(203), "203");
    Iterator it = map.keySet().iterator();
    Integer remove1 = (Integer) it.next();
    it.remove();
    Integer remove2 = (Integer) it.next();
    it.remove();
    ArrayList list = new ArrayList(Arrays.asList(new Integer[] {

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        new Integer(1), new Integer(102), new Integer(203) }));
    list.remove(remove1);
    list.remove(remove2);
    assertTrue("Wrong result", it.next().equals(list.get(0)));
    assertEquals("Wrong size", 1, map.size());
    assertTrue("Wrong contents", map.keySet().iterator().next().equals(
        list.get(0)));


    Map map2 = new Hashtable(101);
    map2.put(new Integer(1), "1");
    map2.put(new Integer(4), "4");

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        list.get(0)));


    Map map2 = new Hashtable(101);
    map2.put(new Integer(1), "1");
    map2.put(new Integer(4), "4");
    Iterator it2 = map2.keySet().iterator();
    Integer remove3 = (Integer) it2.next();
    Integer next;
    if (remove3.intValue() == 1)
      next = new Integer(4);
    else

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      next = new Integer(1);
    it2.hasNext();
    it2.remove();
    assertTrue("Wrong result 2", it2.next().equals(next));
    assertEquals("Wrong size 2", 1, map2.size());
    assertTrue("Wrong contents 2", map2.keySet().iterator().next().equals(
        next));
  }


  /**
   * @tests java.util.Hashtable#keySet()

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          ht.remove(String.valueOf(i));
        }
      }
    };
    t1.start();
    Set set = ht.keySet();
    for (int i = 0; i < iterations; i++) {
      Iterator it = set.iterator();
      try {
        it.next();
        it.remove();

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