hardpart

import java.util.Random;

public class RandomWalk 
{
	public static void main(String[] args) 
	{
        Random rand = new Random(); 
        int position = 0;
        int zeroCrossings = 0;
        int i = 0;
        int steps = 0;
        
        int timesTired = 0;
        int timesPlusTen = 0;
        int timesMinusTen = 0;
        int timesCrazyError = 0;
        
        //wrap in this for loop for step 5
        for(i=0; i < 1000; i++) {
        	
        	//resets
        	zeroCrossings = 0;
        	steps = 0;
        	position = 0;
        	
        	while (position != 10 && position != -10 || steps == 50)
            {
           	     if (rand.nextDouble() < 0.5)
           	     { 
           	    	      position--;
           	     }
           	     else
           	     {
           	    	      position++;
           	     }
           	     //add this for step 4:
           	     if(position == 0) {
           	    	 zeroCrossings++;
           	     }
           	     steps++;   
            }
        	if(steps == 50) {
        		timesTired++;
        	} else if(position == 10) {
        		timesPlusTen++;
        	} else if(position == -10) {
        		timesMinusTen++;
        	} else {
        		timesCrazyError++;
        	}
        }
         
         System.out.println();  // print newline at end of position list
         System.out.println("Times +10: "+timesPlusTen);
         System.out.println("Times -10: "+timesMinusTen);
         System.out.println("Times 50 steps: "+timesTired);
         System.out.println("Times ERROR: "+timesCrazyError);
	}

}