import java.util.Scanner;    // Needed for the Scanner class

/**
   This program demonstrates a user controlled for loop.
*/

public class UserSquares
{
   public static void main(String[] args)
   {
      int number;    // Loop control variable
      int maxValue;  // Maximum value to display
          
      System.out.println("I will display a table of " +
         "numbers and their squares.");

      // Create a Scanner object for keyboard input.
      Scanner keyboard = new Scanner(System.in);
      
      // Get the maximum value to display.
      System.out.print("How high should I go? ");
      maxValue = keyboard.nextInt();

      // Display the table.
      System.out.println("Number\tNumber Squared");
      System.out.println("-------\t----------------");
      
      for (number = 1; number <= maxValue; number++)
      {
         System.out.println(number + "\t" + 
            number * number);
      }
      
      // let's do the powers of two as high as the user said
      /*
      / Display the table.
      System.out.println("Power\t2 to the power");
      System.out.println("-----\t--------------");
      for ()
      {
         System.out.println(number + "\t" + 
            Math.pow(???);
      }
      */
   }
}