简单的打砖块Java版，包含基本的游戏循环，游戏输入和绘图双缓冲-Simple Arkanoid Java version contains the basic game loop game input and drawing double buffering

一个猜谜游戏，随机生成的数字在100以内，使用for循环来确认用户是否猜到数字，外部用一个do-while循环来确认用户是否要继续比赛。-A guessing game, randomly generated numbers less than 100, use a for loop to confirm whether the user guessed numbers outside with a do-while loop to confirm whether the user wants