Objective: Practice Catching Exceptions. The method isStandardTime accepts a Str

Question

Objective: Practice Catching Exceptions. The method isStandardTime accepts a String time as a parameter and should return a true if the string is a valid time. Standard Time is a time format using a 12-hour clock: h:mm[SPACE][AIP]M Times range from 12:00 AM (midnight) to 11:59PM Examples: 12:00 AM:true 9:30 AM: true 12:00 PM: true 12:99 AM" false 13:00 PM" false 7:05" : false 1 of 1: Tue Mar SUBMIT RESET 1 class ParseTime public static boolean isstandardrime (String time) boolean result false; return result; 10

Explanation / Answer

Please find my answer.

public static boolean isStandardTime(String str) {

       if(str == null || str.length() < 7)

           return false;

       int indexColon = str.indexOf(':');

       if(indexColon < 0)

           return false;

       String h = str.substring(0, indexColon);

       int indexSpace = str.indexOf(' ');

       String m = str.substring(indexColon+1, indexSpace);

       String tt = str.substring(indexSpace+1);

       try{

           int hour = Integer.parseInt(h);

           int minute = Integer.parseInt(m);

           if(minute < 0 || minute > 59 || hour < 0 || hour > 12)

               return false;

           if(!("am".equalsIgnoreCase(tt) || "pm".equalsIgnoreCase(tt)))

               return false;

           return true;

       }catch (Exception e) {

           return false;

       }

   }

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.