Java队列

队列是一种“FIFO”先进先出的数据结构.可以想象每年在火车站中买票的人群所组成的"队列"。 |队员1 队员2 队员3 队员3 队员4 队员5 队员6 队员7 队员8| ^ ^ 想象两个指针-Java Queue Queue is a " FIFO"　First In First Out data structure. Imagine a year of people buy tickets at the station formed in a " queue."　| 1 player 2 players 3 players 3 players 4 players 5 players 6 players 7 players 8 players | ^ ^ imagine two pointers. . .