Boolean blocks == false;
Player tracked = null;
public void spawnBlocks(Player p) {
	blocks == true;
	Location l = p.getWorld.getLocation;
	tracked = p;
	double x = l.getX();
	double y = l.gety();
	double z = l.getz();

	for (int i = 1; i < 5; i++) {

		Random rand = new Random();
		double xval = rand.nextDouble((x + 5) - (x - 5)) + 1) + (x - 5);
	double yval = rand.nextDouble((y + 5) - (y - 5)) + 1) + (y - 5);
Location rand = new Location(p.getWorld, xval, yval, z + 10);
Byte blockData = 0x0;
p.getWorld().spawnFallingBlock(rand, Material.Bedrock, blockData);
}
@EventHandler
public void blockHit(EntityChangeBlockEvent e) {
	if (!blocks) {
		return;
	}
	Location pl = tracked.getPlayer;
	Location bl = e.getBlock.getWorld.getLocation;
	if (pl.equals(bl)) {
		pl.setHealth(5);
	}
	e.setCancelled(true);
    blocks == false;
    tracked == null;
}

	 System.out.println("Hello, World");
		double z = 15;
		int minx = 140;
		int maxx = 160;
		int miny = 140;

		int maxy = 160;
		      for (int i = 0; i < 5; i++) {
  System.out.println("Hello, World");
                Random rand = new Random();
                int xval = rand.nextInt((maxx - minx) + 1) + minx;
                int yval = rand.nextInt((maxy - miny) + 1) + miny;
                 System.out.println("Point: " + i + " Location: " + xval + "," + yval + "," + z+10);
                 double xva = (double) xval;
                 System.out.println(xva);
        }
	}
}