Java Collection Join join(Collection strings)

Description

Joins a Collection of strings into a single string, inserting a space between each one.

License

Open Source License

Parameter

Parameter	Description
strings	The Collection of strings to join.

Return

The resulting string.

Declaration

public static String join(Collection<String> strings) 

Method Source Code

//package com.java2s;
/*/*from   w  ww.  j  av a 2 s. c o m*/
    
Copyright: 2010 Bindley Bioscience Center, Purdue University
    
License: X11 license.
    
  Permission is hereby granted, free of charge, to any person
  obtaining a copy of this software and associated documentation
  files (the "Software"), to deal in the Software without
  restriction, including without limitation the rights to use,
  copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the
  Software is furnished to do so, subject to the following
  conditions:
    
  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.
    
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  OTHER DEALINGS IN THE SOFTWARE.
    
*/

import java.util.Collection;

public class Main {
    /**
     * Joins a Collection of strings into a single string, inserting a space
     * between each one.
     * 
     * @param strings The Collection of strings to join.
     * @return The resulting string.
     */
    public static String join(Collection<String> strings) {
        return join(strings, " ");
    }

    /**
     * Joins a Collection of strings into a single string, inserting a separator
     * string between each one.
     * 
     * @param strings The Collection of strings to join.
     * @param separator The separator to use between strings.
     * @return The resulting string.
     */
    public static String join(Collection<String> strings, String separator) {
        StringBuilder returnValue = new StringBuilder();
        for (String string : strings) {
            if (returnValue.length() > 0) {
                returnValue.append(separator);
            }
            returnValue.append(string);
        }
        return returnValue.toString();
    }

    /**
     * Converts a character to a String.
     * 
     * @param c The character to be converted.
     * @return A string containing a single character.
     */
    public static String toString(char c) {
        return new StringBuilder().append(c).toString();
    }
}

Related

1. join(Collection list, String conjunction)
2. join(Collection packs)
3. join(Collection s, String delimiter)
4. join(Collection s, String delimiter)
5. join(Collection src, String delim)
6. join(Collection strings, String delimiter)
7. join(Collection strings, String delimiter)
8. join(Collection strings, String delimiter)
9. join(Collection strings, String delimiter)