Java Map Reverse reverse(Map source, Map target)

Description

Take key and value pairs from source and create map from value to key in target.

License

Apache License

Declaration

public static <K, V> void reverse(Map<K, V> source, Map<V, K> target) 

Method Source Code

//package com.java2s;
/*/*from   w  w  w  .j a va2 s.c om*/
 * Copyright 2010 Workplace Systems PLC (http://www.workplacesystems.com/).
 *
 * 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.Iterator;

import java.util.Map;

public class Main {
    /** Take key and value pairs from source and create map from value to key in target. */
    public static <K, V> void reverse(Map<K, V> source, Map<V, K> target) {
        Iterator<K> i = source.keySet().iterator();
        while (i.hasNext()) {
            K key = i.next();
            V value = source.get(key);
            target.put(value, key);
        }
    }
}

Related

1. reverse(Map source, Map target)
2. reverse(Map in)
3. reverse(Map kvMap)
4. reverse(Map map)
5. reverse(Map map)
6. reverse(Map source)
7. reverse(Map source)
8. reverse_map(Map map)
9. reverse_map(Map map)