The Time in Words.java

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

public class Solution {
public static String ones[] = {"", "ONE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN","EIGHT", "NINE", "TEN", "ELEVEN", "TWELVE", "THIRTEEN", "FOURTEEN","quarter", "SIXTEEN","SEVENTEEN", "EIGHTEEN", "NINETEEN"};
        public static String clock = " o' clock";
        public static String twenty  = "twenty ";
        public static String thirty = "half";
        public static String past = " past ";
        public static String to = " to ";
    // Complete the timeInWords function below.

    static String timeInWords(int h, int m) {
        if(m == 0) return ones[h].toLowerCase()+clock;
        if(m == 15) return ones[m].toLowerCase() +past+ ones[h].toLowerCase();
        if(m == 45) return ones[15].toLowerCase() +to+ ones[h+1].toLowerCase();
        if(m == 30) return thirty+ past +ones[h].toLowerCase();
        else return getMinutes(m, h);
    }

    static String getHours(int h){
        return ones[h].toLowerCase();    
    }
    static String getMinutes(int m, int h){
        if(m > 30){
            if(m > 40){
                return ones[60-m].toLowerCase()+ " minutes"+ to + getHours(h+1);
            }else{
                return twenty + ones[(60-m)%20].toLowerCase() + " minutes"+ to + getHours(h+1);
            }
        }
        if(m < 30){
            if(m <= 19){
                if(m ==1) return ones[m].toLowerCase() + " minute"+ past+ getHours(h);
                else return ones[m].toLowerCase() + " minutes"+ past+ getHours(h);
            }else{
                return twenty+ones[m%20].toLowerCase() + " minutes"+ past+ getHours(h); 
            }
        }
        return "";
    }

    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) throws IOException {
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        int h = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        int m = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        String result = timeInWords(h, m);

        bufferedWriter.write(result);
        bufferedWriter.newLine();

        bufferedWriter.close();

        scanner.close();
    }
}