Java Map Copy copyMap(Map m)

Description

copy Map

License

Open Source License

Declaration

public static <T, U> Map<T, U> copyMap(Map<T, U> m) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010 BSI Business Systems Integration AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * /*  w  ww. ja va  2s  .c om*/
 * Contributors:
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/

import java.util.HashMap;

import java.util.List;
import java.util.Map;

public class Main {
    public static <T, U> Map<T, U> copyMap(Map<T, U> m) {
        if (m == null || m.size() == 0) {
            return new HashMap<T, U>();
        } else {
            return new HashMap<T, U>(m);
        }
    }

    public static <T> int size(List<T> list) {
        if (list == null) {
            return 0;
        }
        return list.size();
    }
}

Related

1. copyMap(Map sourceMap, Map targetMap)
2. copyMap(Map m)
3. copyMap(Map m)
4. copyMap(Map oMap)
5. copyMap(Map map)
6. copyMap(Object object)
7. copyMapButFailOnNull(Map entries)
8. copyMapWithoutEmpties(Map original)
9. copyOf( Map> map)