Chop i characters off the end of a string. : String Strip « Data Type « Java






  1. Java
  2. Data Type
  3. String Strip

Chop i characters off the end of a string.

     

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.    
 */
import java.util.StringTokenizer;


/**

 *
 *  @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>
 *  @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
 *  @version $Id: StringUtils.java 685685 2008-08-13 21:43:27Z nbubna $
 */
public class Main {
  /**
   * Line separator for the OS we are operating on.
   */
  private static final String EOL = System.getProperty("line.separator");


  /**
   * Chop i characters off the end of a string.
   * This method assumes that any EOL characters in String s
   * and the platform EOL will be the same.
   * A 2 character EOL will count as 1 character.
   *
   * @param s String to chop.
   * @param i Number of characters to chop.
   * @return String with processed answer.
   */
  public static String chop(String s, int i)
  {
      return chop(s, i, EOL);
  }

  /**
   * Chop i characters off the end of a string.
   * A 2 character EOL will count as 1 character.
   *
   * @param s String to chop.
   * @param i Number of characters to chop.
   * @param eol A String representing the EOL (end of line).
   * @return String with processed answer.
   */
  public static String chop(String s, int i, String eol)
  {
      if ( i == 0 || s == null || eol == null )
      {
         return s;
      }

      int length = s.length();

      /*
       * if it is a 2 char EOL and the string ends with
       * it, nip it off.  The EOL in this case is treated like 1 character
       */
      if ( eol.length() == 2 && s.endsWith(eol ))
      {
          length -= 2;
          i -= 1;
      }

      if ( i > 0)
      {
          length -= i;
      }

      if ( length < 0)
      {
          length = 0;
      }

      return s.substring( 0, length);
  }
}








Related examples in the same category

1.Strips any of a set of characters from the end of a String.
2.Strips any of a set of characters from the start and end of a String allowing the characters to be stripped to be controlled.
3.Strips any of a set of characters from the start and end of every String in an array.
4.Strips any of a set of characters from the start of a String.
5.Strips whitespace from the start and end of a String returning an empty String if null input.
6.Strips whitespace from the start and end of a String returning null if the String is empty ("") after the strip.
7.Strips whitespace from the start and end of a String.
8.Strips whitespace from the start and end of every String in an array.
9.Remove/collapse multiple newline characters.
10.Removes a substring only if it is at the begining of a source string, otherwise returns the source string.
11.Removes a substring only if it is at the end of a source string, otherwise returns the source string.
12.Gets the leftmost len characters of a String
13.Gets the rightmost len characters of a String.
14.Remove the leading and trailing quotes from str.
15.Remove the last character from a String.
16.Removes separator from the end of str if it's there, otherwise leave it alone.
17.Trim any of the characters
18.Strip Line Breaks
19.Removes newline, carriage return and tab characters from a string
20.Trim off trailing blanks but not leading blanks
21.Used to print out a string for error messages, chops is off at 60 chars for historical reasons.
22.Trim specified charcater from end and from of string
23.Trim specified charcater from end of string
24.Trim specified charcater from front of string
25.Trim specified token from both sides of the string
26.Trims several consecutive characters into one.
27.Trims the quotes.
28.Truncate text on a whitespace boundary (near a specified length)
29.Truncates large Strings showing a portion of the String's head and tail with the center cut out and replaced with '...'.
30.Truncate a String to the given length with no warnings or error raised if it is bigger.
31.Filters string
32.strip string