java：创建多个具有不同名称的线程（不使用for循环）

Question

I am working on a project where I have to create on or more new threads when a particular condition is satisfied. Basically I am stuck in creating new threads with different names every time as I am not aware how many threads would be generated in tun time.

Example : Thread t1= new thread(); Thread t2= new thread(); and so on.. Here I am not aware of whether I would be requiring till t10 or t99.

Answer 1

I know you asked for no loop, but would this get what you need?

int numberOfThreads = //whatever;
 ArrayList<Thread> threadList = new ArrayList<>();
 for(int i = 0; i<numberOfThreads; i++)
 {
    Thread t = new Thread();
    threadList.add(t);
}

You can call the threads by index instead of name, threadList.get(number);

Answer 2

First things first:

There are no dynamical variables in java. You've to declare them in the sourcecode.

To archieve your identifier problem you could use a HashMap :

Map<String, Thread> hm = new HashMap<String, Thread>();

And a method that adds threads to it:

public void addThreadToMap(Thread t) {
    hm.put("t" + hm.size().toString(), t);       //This will add the thread with the key [t0 .... tn]
}

Answer 3

您可以只创建一个ArrayList并每次添加一个新的。