Try to sink the computer's ships before he sinks yours in this Java version of the classic BattleShip game!   First place you ships in order from the longest to the shortest.  Point to the block you want to place your ship, left clicking places your ship in the horizontal position, right clicking will place your ship vertically.

Once your ships are placed, point to the block on your opponent side you want to target, and left click your mouse button.  Your opponent will shoot right back.  Depending upon your internet connection, you may have to wait a few seconds for the sounds to load for your initial shot.