Я продолжаю получать эту ошибку Исключение в потоке "main" java.lang.ArrayIndexOutOfBoundsException: 0

Question

Исключение в потоке "main" java.lang.ArrayIndexOutOfBoundsException: 0 at homework.TestClock.main(TestClock.java:10)

import java.sql.Time;
    public class Clock {

       //Create two instance of Time class with default values
       //for hour,minute and seconds
       private Time startTime=new Time(0, 0, 0);
       private Time stopTime=new Time(0, 0, 0);

       //set start time
       public void start(Time startTime){
           this.startTime=startTime;
       }


       //set end time
       public void stop(Time stopTime){
           this.stopTime=stopTime;
       }

       /**The method getElapsedTime calculates the time difference
       * between two times and returns seconds as return value.
       * */
       public int getElapsedTime(){
           int totalSeconds=0;
           int hours=stopTime.getHours()-startTime.getHours();
           if(hours>0) {          
               int minues=stopTime.getMinutes()-startTime.getMinutes();
               if(minues>0) {
                   minues=stopTime.getMinutes()-startTime.getMinutes();
               }
               else
                   minues=startTime.getMinutes()-stopTime.getHours();

               int seconds=stopTime.getSeconds()-startTime.getSeconds();
               if(minues>0) {
                   seconds=stopTime.getSeconds()-startTime.getSeconds();
               }
               else
                   seconds=startTime.getSeconds()-stopTime.getSeconds();


               totalSeconds=hours*60*60+minues*60+seconds;
           }
           else {

               int minutes=stopTime.getMinutes()-startTime.getMinutes();
               if(minutes>0) {
                   minutes=stopTime.getMinutes()-startTime.getMinutes();
               }
               else
                   minutes=startTime.getMinutes()-stopTime.getMinutes();

               int seconds=stopTime.getSeconds()-startTime.getSeconds();
               if(seconds>0) {
                   seconds=stopTime.getSeconds()-startTime.getSeconds();
               }
               else
                   seconds=startTime.getSeconds()-stopTime.getSeconds();


               totalSeconds=hours*60*60+minutes*60+seconds;
           }
           //return seconds              
           return totalSeconds;
       }//end of the getElapsedTime method


    }//end class

---

 import java.sql.Time;
    public class TestClock {
       public static void main(String[] args) {

           //Create an instance of Clock class object
           Clock clock=new Clock();      
           //Get first argument
           String startTime=args[0];

           //split the argument and get hour,minute and second
           String [] time=startTime.split(":");

           //split the argument and get hour,minute and second
           int hour=Integer.parseInt(time[0]);
           int minutes=Integer.parseInt(time[1]);
           int seconds=Integer.parseInt(time[2]);


           //call start method with an instance Time class
           clock.start(new Time(hour, minutes, seconds));

           //Get first argument
           String endTime=args[1];
           String [] stopTime=endTime.split(":");

           //split the argument and get hour,minute and second
           hour=Integer.parseInt(stopTime[0]);
           minutes=Integer.parseInt(stopTime[1]);
           seconds=Integer.parseInt(stopTime[2]);
           //call start method with an instance Time class
           clock.stop(new Time(hour, minutes, seconds));

           System.out.println("Elapsed time in seconds :"+clock.getElapsedTime());

       }//end main

 }//end class

Все методы get и время начала и окончания не работают

Я приму всю помощь, которую смогу получить.

Answer 1

Я хочу знать, как вы передаете переменную String[] args? Когда вы установите это?

//how you pass value for this String[] args?
public static void main(String[] args) {

    //if String[] args is null, there must be error
    //Get first argument
    String startTime=args[0];