Android Open Source - task4java String Utils

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License

The source code is released under:

Apache License

Java Source Code

/*
 *  Copyright (c) 2014 Andree Hagelstein, Maik Schulze, Deutsche Telekom AG. All Rights Reserved.
 *  //w ww.j av  a  2  s  .com
 *  Filename: StringUtils.java
 */
package com.task4java;

import java.util.Collection;
import java.util.Iterator;

public class StringUtils {

  public static boolean IsNullOrEmpty(String string) {

    return (string == null || string.length() == 0);

  }

  public static String normalizeString(String text) {

    return text.replaceFirst("^?", "a").replaceFirst("^?", "o").replaceFirst("^?", "u").replaceFirst("^?", "A").replaceFirst("^?", "O")
        .replaceFirst("^?", "U").toUpperCase();

  }
  
  public static String join(Collection<?> s, String delimiter) {
    return join(s, delimiter, null);
  }
  
  public static String join(Collection<?> s, String delimiter, String prefix) {
    
       StringBuilder builder = new StringBuilder();
       Iterator<?> iter = s.iterator();
       
       while (iter.hasNext()) {
         
         if (!IsNullOrEmpty(prefix)) {
           builder.append(prefix);
         }
           builder.append(iter.next());
        
           if (!iter.hasNext()) {
             break;                  
           }
           builder.append(delimiter);
       }
       return builder.toString();
   }
}

Java Source Code List

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