utils.java

旅游自助系统

/**
 * 
 */
package org.tshs.core;

/**
 * @author Administrator
 *
 */
public class Utils {
	
	/**
	 * Specialize a toLowerCase method in order to get a chance to 
	 * deal with the null pointer encounter. 
	 * 
	 * @param s
	 * @return
	 */
	public static String toLowerCase(String s){
		if(s == null){
			return null;
		}
		return s.toLowerCase();
	}
	
}