class Stuff {
   // instance vars:

   private int[] x =__________; // array with 3 defaults
 	   
   private int[] y ;            // declare int array

   private int[] z =__________; // array has vals 1 to 4

   // constructor:
    
   public Stuff(int n) {
       // create $y$ array with size $n$

       __________________________ ;

       // fill $y$ with random values

       __________________________ ;
       }

   // Fill $y$ with random values 0 or 1:
      private void fillY() {
	 for (int i = 0 ; i < y.length ; i++ )
	    y[i] = (int)(Math.random()*2) ;
      }       

    // Choose array (x, y, or z) and return it:
    
       public ___________ getArray(int choice) {	   
	   int[] a;
	   
	   switch( ___________________ ) {
	       
	   case 1:  a = x; break;
	   case 2:  a = y; break;
	   case 3:  a = z; break;

	   default: a = _____________________ ; break; 
	   }
	   return _____________ ;
       }
} // class Stuff

public class classWithArrays {
    public static void main(String[] args) {
	Stuff s = new Stuff(5);
	print(s.getArray(1));
	print(s.getArray(2));
	print(s.getArray(3));
	print(s.getArray(10));
    }
    public static void print(int[] v) {

	for (int i = __ ; ________________ ; _______ )
	    System.out.print(v[i] + " ");
	System.out.println();
    }
} // class classWithArrays