Convert a String to an int, returning zero if the conversion fails. : String Parser « Data Type « Java

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Java » Data Type » String ParserScreenshots 
Convert a String to an int, returning zero if the conversion fails.
    
   
/**
 * 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.
 */


/**
 
 *
 @author John Keyes (john at integralsource.com)
 @version $Revision: 680644 $, $Date: 2008-07-29 01:13:48 -0700 (Tue, 29 Jul 2008) $
 */
public class Main {


  //--------------------------------------------------------------------
  
  /**
   * <p>Convert a <code>String</code> to an <code>int</code>, returning
   * <code>zero</code> if the conversion fails.</p>
   
   @param str  the string to convert
   @return the int represented by the string, or <code>zero</code> if
   *  conversion fails
   */
  public static int stringToInt(String str) {
      return stringToInt(str, 0);
  }

  /**
   * <p>Convert a <code>String</code> to an <code>int</code>, returning a
   * default value if the conversion fails.</p>
   
   @param str  the string to convert
   @param defaultValue  the default value
   @return the int represented by the string, or the default if conversion fails
   */
  public static int stringToInt(String str, int defaultValue) {
      try {
          return Integer.parseInt(str);
      catch (NumberFormatException nfe) {
          return defaultValue;
      }
  }

}

   
    
    
    
  
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8.Normalize a SQL identifer, up-casing if , and handling of (SQL 2003, section 5.2).
9.Parsing primitives from String's without creating any objects
10.Checks whether the String a valid Java number.
11.Check whether the given String has actual text.
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