Source Code : Get Age

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Get Age

    
/*  
 * Copyright 2008-2010 the original author or authors 
 *
 * 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.
 */
//package org.kaleidofoundry.core.util;

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

/**
 * Helper for date handle
 * 
 * @author Jerome RADUGET
 */
public abstract class DateHelper {

  /**
   * @param birthdate
   * @return Age from the current date
   */
  public static float getAge(final Date birthdate) {
    return getAge(Calendar.getInstance().getTime(), birthdate);
  }

  /**
   * Calculating age from a current date
   * 
   * @param current
   * @param birthdate
   * @return Age from the current (arg) date
   */
  public static float getAge(final Date current, final Date birthdate) {

    if (birthdate == null) {
      return 0;
    }
    if (current == null) {
      return getAge(birthdate);
    } else {
      final Calendar calend = new GregorianCalendar();
      calend.set(Calendar.HOUR_OF_DAY, 0);
      calend.set(Calendar.MINUTE, 0);
      calend.set(Calendar.SECOND, 0);
      calend.set(Calendar.MILLISECOND, 0);

      calend.setTimeInMillis(current.getTime() - birthdate.getTime());

      float result = 0;
      result = calend.get(Calendar.YEAR) - 1970;
      result += (float) calend.get(Calendar.MONTH) / (float) 12;
      return result;
    }

  }
}

   
    
    
    
  

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