Truncate a String to the given length with no warnings or error raised if it is bigger. : String Format « Data Type « Java Tutorial

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/*

 Derby - Class org.apache.derby.iapi.util.PropertyUtil

 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.

 */

public class Main {

  /**
  Truncate a String to the given length with no warnings
  or error raised if it is bigger.

  @param  value String to be truncated
  @param  length  Maximum length of string

  @return Returns value if value is null or value.length() is less or equal to than length, otherwise a String representing
    value truncated to length.
*/
public static String truncate(String value, int length)
{
  if (value != null && value.length() > length)
    value = value.substring(0, length);
  return value;
}


}