title: How flipping a coin and display tails and heads counting?
body: <p>I am very beginner on Java, still getting passion about.
  I have been given this exercise: "Write a simulator program that flips a coin: One thousand times then prints out how many time you get tails and how many times you get heads"
  That is what i have tried to do so far.</p>
  
  <pre><code>import java.util.Random; 
  import java.util.regex.Pattern; 
  
  public class coin { 
  
      public static void main( String [] args ) { 
  
          Random r = new Random(); 
          Pattern tail = Pattern.compile("Tail+"); 
          Pattern head = Pattern.compile("Head+"); 
          String flips = ""; 
  
          for (int i = 0; i &lt; 1000; i++) { 
              flips += r.nextInt(100) % 2 == 0 ? "Head" : "Tail"; 
          } 
          String[] heads = head.split( flips ); 
          String[] tails = tail.split( flips ); 
          //Display
          System.out.println("Times head was flipped:" + heads.length); 
          System.out.println("Times tail was flipped:" + tails.length); 
      }
  }
  </code></pre>
  
  <p>The program seems to be working, but it is giving me always an almost pair amount of heads and tails, which the total exceed 1000, at least by 1 or more.
  Please, someone has any solution of this? Where am I wrong?
  Thanks</p>