// about input from user
import java.util.*;
// about calculate function
import java.math.*;

public class test {

      public static void main( String args[] ) {

            // variable
            int base = 0;
            int exponent = 0;
            // get input from user
            System.out.println(" -> Get Me A Power");
            Scanner base_input = new Scanner( System.in );
            System.out.print(" \tEnter base number : ");
            base = base_input.nextInt();
            Scanner exponent_input = new Scanner( System.in );
            System.out.print(" \tEnter exponent number : ");
            exponent = exponent_input.nextInt();
            // create MyPower obj and call power calculate method
            MyPower myPower = new MyPower( base, exponent );
            System.out.println( " \tMy power is " + myPower.getMeAPower() + "\n" );

            // variable
            int sec = 0;
            // get input from user
            System.out.println(" -> Second 2 Time Format");
            Scanner sec_input = new Scanner( System.in );
            System.out.print(" \tEnter time in second : ");
            sec = sec_input.nextInt();
            // create Sec2TimeFormat obj
            Sec2TimeFormat my_time = new Sec2TimeFormat( sec );
            System.out.println( " \tTime is " + my_time.convert() + "\n" );

            // create AgeRange obj
            System.out.println(" -> Age Range");
            AgeRange ageRange = new AgeRange();

      }

}

// MyPower pseudocode
// create MyPower object with input from user
//    base = get_input_from_user()
//    exponent = get_input_from_user()
// call getMeAPower function
//    return power = base ^ exponent
// show output
//    print getMeAPower function

class MyPower {

      // variable
      private int base = 0;
      private int exponent = 0;

      public MyPower( int base, int exponent ) {
            this.base = base;
            this.exponent = exponent;
      }

      // method
      public double getMeAPower() {
            return ( Math.pow( this.base, this.exponent ) );
      }

}

// Sec2TimeFormat pseudocode
// create Sec2TimeFormat object with input from user
//       sec = get_input_from_user()
// call convert function
//       calculate hour from sec
//             hour = sec / 3600
//             min = (sec / 60) % 60
//             sec = sec % 60
//       convert to string object and return its
//             return Sting of ( hour, min, sec )
// show output
//       print convert function

class Sec2TimeFormat {

      private double sec = 0;

      public Sec2TimeFormat( int sec_input ) {
            this.sec = sec_input;
      }

      public String convert() {

            double hour = Math.floor( this.sec / 3600 );
            double min = Math.floor( ( this.sec / 60 ) % 60 );
            double sec = this.sec % 60;

            // return as string
            return String.valueOf( hour + " Hour " + min + " Minute and " + sec + " second." );

      }

}

// AgeRange pseudocode ??

class AgeRange {

      public AgeRange() {

            int sum_age = 0;

            // get input from user or do something
            System.out.print(" \tAge random : ");
            for( int i = 0; i < 10; i++ ) {
                  Random rand = new Random();
                  // Generate random int in a range ( max, min )
                  // Reference from http://stackoverflow.com/questions/20389890/generating-a-random-number-between-1-and-10-java
                  int rand_age = rand.nextInt( 100 - 1 + 1 ) + 1;

                  sum_age += rand_age;
                  System.out.print( rand_age + " " );
            }

            // find range of age
            int mean_age = sum_age / 10;
            System.out.print(" \n\tThe Mean age is " + mean_age + "  อยู่ในช่วง");
            if( mean_age < 15 ) {
                  System.out.println("วัยเด็ก");
            } else if( mean_age >= 15 && mean_age <= 20 ) {
                  System.out.println("วัยรุ่น");
            } else if( mean_age > 20 && mean_age <= 40 ) {
                  System.out.println("วัยผู้ใหญ่");
            } else if( mean_age > 40 && mean_age <= 60 ) {
                  System.out.println("วัยกลางคน");
            } else if( mean_age > 60 ) {
                  System.out.println("วัยชรา");
            }

      }

}