package huitong.util;

public class FinalVar 
{
	public static String rootPath ="D:\\java\\Tomcat 6.0\\webapps\\photo\\_userRoot\\";
	 public static int compare(String str1,String str2)
	    {   //str1 > str2 return 1;
	    	//str1 == str2 return 0;
	    	//str1 < str2 return -1;
	    	//前iShorter個字符相等，如果str1已經結束，返回1；str2結束，返回-1；都結束返回0
	    	int iShorter = str1.length(); 
	    	int returnValue = 0;
	    	if (str2.length() > iShorter )
	    	{//
	    		iShorter = str2.length();
	    		returnValue = 1;
	    	}
	    	if (str2.length() < iShorter )
	    	{
	    		iShorter = str2.length();
	    		returnValue = -1;
	    	}
	    	int index = 0;
	    	for (;index < iShorter;index++)
	    	{
	    		if (str1.charAt(index) < str2.charAt(index))
	    		{
	    			returnValue = -1;
	    			break;
	    		}
	    		if (str1.charAt(index) > str2.charAt(index)){} 
	    		{
	    			returnValue = 1;
	    			break;
	    		}
	    	}
	    	return returnValue;
	    }
       public static String  encoding(String str)
       {
    	   try
   		{
   			str = new String(str.getBytes("iso-8859-1"));	
   		}
   		catch(Exception e)
   		{
   			e.printStackTrace();
   		}
   		return str;
       }
       public static String subFourChars(String str)
       {
    	   if (str.length() > 4)
    	   {
    		   str = str.substring(0,4);
    	   }
    	   return str;
       }
}