[백준] 1408번 : 24 - Java(자바)

https://www.acmicpc.net/problem/1408

import java.util.Scanner;
public class Main {
    public static void main(String args[]) {
      Scanner s=new Scanner(System.in);
      String a=s.nextLine();
      String b=s.nextLine();
      String[] x=a.split(":");
      String[] y=b.split(":");
      int hour=Integer.parseInt(y[0])-Integer.parseInt(x[0])+23;
      int min=Integer.parseInt(y[1])-Integer.parseInt(x[1])+59;
      int sec=Integer.parseInt(y[2])-Integer.parseInt(x[2])+60;
      if(sec>=60){
          sec-=60;
          min+=1;
      }
      if(min>=60){
          min-=60;
          hour+=1;
      }
      if(hour>=24){
          hour-=24;
      }
      System.out.format("%02d:%02d:%02d",hour,min,sec);
    }
}