solved libgdx onTouch() (delays for objects, array) -to a point-

Newbie & Debugging Questions
#1

i am trying to create random bullets but it is not working for some reason. also how can i make a delay so the bullets come every 30 seconds or 1 minute???
also the onTouch method does not work and it is not taking the bullet away???

shall i put the array in the GameRender class?
thanks


public class GameWorld {
	
	public static Ball ball;
	private Bullet bullet1;
        private ScrollHandler scroller;
        private Array<Bullet> bullets = new Array<Bullet>();

    public GameWorld() {
    	ball = new Ball(280, 273, 32, 32);
    	bullet = new Bullet(-300, 200);
        scroller = new ScrollHandler(0);
        bullets.add(new Bullet(bullet.getX(), bullet.getY()));
        
        bullets = new Array<Bullet>();

        Bullet bullet = null;
        float bulletX = 0.0f;
        float bulletY = 0.0f;
        for (int i=0; i < 10; i++) {
           bulletX = MathUtils.random(-10, 10);
           bulletY = MathUtils.random(-10, 10);
           bullet = new Bullet(bulletX, bulletY);

           bullets.add(bullet); 
        }
    }

    public void update(float delta) {
        ball.update(delta);
        bullet.update(delta);
        scroller.update(delta);
    }

    public static Ball getBall() {
        return ball;
    }
    
    public ScrollHandler getScroller() {
        return scroller;
    }
    
    public Bullet getBullet1() { 
    	return bullet1;
    }
}

i also tried this and it is not working, i used this in the GameRender class


Array<Bullet> enemies=new Array<Bullet>();

//in the constructor of the class
enemies.add(new Bullet(bullet.getX(), bullet.getY()));

 // this throws an exception for some reason??? this is in the render method
    for(int i=0; i<bullet.size; i++)
       bullet.get(i).draw(batcher);

//this i am using in any method that will allow me from the constructor to update to render
 for(int i=0; i<bullet.size; i++)
    bullet.get(i).update(delta);

this is not taking the bullet out


 @Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
for(int i=0; i<bullet.size; i++)
     if(bullet.get(i).getBounds().contains(screenX,screenY))
         bullet.removeIndex(i--);
 return false;
}

thanks for the help anyone.
johny