Java ListIterator Usage findPrevious(ListIterator iter)

Description

find Previous

License

Open Source License

Declaration

private static <T> T findPrevious(ListIterator<T> iter) 

Method Source Code

//package com.java2s;
/**/*from  w  ww .j a  v  a 2  s. c o  m*/
  * Copyright 2014 Google Inc. All rights reserved.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  * 
  *     http://www.apache.org/licenses/LICENSE-2.0
  * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
*/

import java.util.ListIterator;

public class Main {
    private static <T> T findPrevious(ListIterator<T> iter) {
        T prev = null;
        iter.previous(); // rewind
        if (iter.hasPrevious()) {
            prev = iter.previous();
            iter.next(); // come back
        }
        iter.next(); // come back
        return prev;
    }
}

Related

1. differingDigits(final int lhs, final int rhs, final int base)
2. emptyIterator()
3. filterStringList(final String prefix, final String infix, final String suffix, final List list)
4. findFirstIterator(List list, int fromIndex, int toIndex, T value, Comparator comparator)
5. findObject(Object item, ListIterator iter)
6. getAll_SequentialAccess( List idxs, List values)
7. getCamelNameSegments(String camelName)
8. getCurrentElement(ListIterator listIterator)
9. getLastNonNull(List l)