Wednesday, 4 October 2017

Time Convertion

problem-

Given a time in -hour AM/PM format, convert it to military (-hour) time.
Note: Midnight is  on a -hour clock, and  on a -hour clock. Noon is  on a -hour clock, and  on a -hour clock.
Input Format
A single string containing a time in -hour clock format (i.e.:  or ), where  and .
Output Format
Convert and print the given time in -hour format, where .
Sample Input
07:05:45PM
Sample Output
19:05:45
solution-

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

/*
    *
    * Ratnadeep Sen
    * National Institute Of Technology Silchar -India (NITS)
    *
*/

public class Solution {
  
  public static void main(String[] args) {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
    
    Scanner input = new Scanner(System.in);
    String inputTime = input.nextLine();
    String [] tempArray = inputTime.split(":");
    String hours = tempArray[0];
    String minutes = tempArray[1];
    String seconds = tempArray[2].substring(0, 2);
    
    int tempHours;
    
    if (tempArray[2].substring(2, 4).equalsIgnoreCase("PM")) {
      if (Integer.parseInt(hours) < 12) {
        tempHours = Integer.parseInt(hours);
        tempHours += 12;
        hours = Integer.toString(tempHours);
      }
    }
    if (tempArray[2].substring(2, 4).equalsIgnoreCase("AM")) {
      if (Integer.parseInt(hours) == 12) {
        hours = "00";
      }
    }
    System.out.println(hours + ":" + minutes + ":" + seconds);
    
    
  }
}


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