package?com.player;

import?java.util.Arrays;

public?class?StringUtility?{
	
	/**
	?*?Judge?the?string?is?null?or?is?empty.
	?*?@param?value
	?*?@return
	?*/
	public?static?boolean?isNull（String?value）?{
		if?（value?==?null?||?““.equals（value））?{
			return?true;
		}
		return?false;
	}
	
	/**
	?*?Split?a?string?using?the?division.
	?*?@param?value
	?*?@param?regex
	?*?@return
	?*/
	public?static?String[]?split（String?value?String?regex）?{
		String[]?ret?=?null;
		if?（isNull（value））?{
			return?ret;
		}
		if?（isNull（regex））?{
			ret?=?new?String[]{value};
			return?ret;
		}
		
		ret?=?value.split（regex）;
		if?（value.endsWith（regex））?{
			ret?=?Arrays.copyOf（ret?ret.length?+?1）;
			ret[ret.length?-?1]?=?““;
		}
		return?ret;
	}
}