public static void main(String[] args) {
List<String> list = new ArrayList<>();
for (int i = 0; i < 3; i++) {
new Thread(() -> {
list.add(UUID.randomUUID().toString().substring(0,8));
System.out.println(Thread.currentThread().getName()+"----------"+list);
}, String.valueOf(i)).start();
}
}
运行结果一
运行结果2
运行结果三