Trim all whitespace from the given String: leading, trailing, and in between characters. - Android java.lang

Android examples for java.lang:String Strip

  1. HOME
  2. Android
  3. java.lang
  4. String Strip

Description

Trim all whitespace from the given String: leading, trailing, and in between characters.

Demo Code

/*/*  w w w . jav a 2s.c o  m*/
 * Copyright (C) 2012 Google Inc.
 *
 * 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.
 */
public class Main {

  /**
   * Trim <i>all</i> whitespace from the given String: leading, trailing, and
   * in between characters.
   * 
   * @param str
   *          the String to check
   * @return the trimmed String
   * @see Character#isWhitespace
   */
  public static String trimAllWhitespace(String str) {
    if (!hasLength(str)) {
      return str;
    }
    StringBuffer buf = new StringBuffer(str);
    int index = 0;
    while (buf.length() > index) {
      if (Character.isWhitespace(buf.charAt(index))) {
        buf.deleteCharAt(index);
      } else {
        index++;
      }
    }
    return buf.toString();
  }
  public static boolean hasLength(CharSequence str) {
    return (str != null && str.length() > 0);
}
}

Related Tutorials