先来看一段代码,实现如下打印效果: 1 2 A 3 4 B 5 6 C 7 8 D 9 10 E 11 12 F 13 14 G 15 16 H 17 18 I 19 20 J 21 22 K 23 24 L 25 26 M 27 28 N 29 30 O 31 32 P 33 34 Q 35 36 R 37 38 S 39 40 T 41 42 U 43 44 V 45 46 W 47 48 X 49 50 Y 51 52 Z package test; import java.util.c…
// read and write lock is mutual exclusion lock //Listing 7-3. Using ReadWriteLock to Satisfy a Dictionary Application’s Reader and //Writer Threads import java.util.HashMap; import java.util.Map; import java.util.concurrent.Executors; import java.ut…