Replace substrings within string : String replace « Data Type « Java

Replace substrings within string


// Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// 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 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.

/** Fast String Utilities.
 * These string utilities provide both conveniance methods and
 * performance improvements over most standard library versions. The
 * main aim of the optimizations is to avoid object creation unless
 * absolutely required.
 * @author Greg Wilkins (gregw)
class StringUtil
   * replace substrings within string.
  public static String replace(String s, String sub, String with)
      int c=0;
      int i=s.indexOf(sub,c);
      if (i == -1)
          return s;
      StringBuffer buf = new StringBuffer(s.length()+with.length());

          } while ((i=s.indexOf(sub,c))!=-1);
          if (c<s.length())
          return buf.toString();


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