/** 
* 小時:分鐘的正則表達式檢查<br> 
* <br> 
* @param pInput 要檢查的字符串 
* @return boolean 返回檢查結果 
*/ 
public static boolean isUrl (String pInput) { 
if(pInput == null){ 
return false; 
} 
String regEx = " ^([0-1]{1}/d|2[0-3]):([0-5]/d)$"; 

Pattern p = Pattern.compile(regEx); 
Matcher matcher = p.matcher(pInput); 
return matcher.matches(); 
}