javarunnable method_How to implement a method on an object that implements Runnable in Java?

I have an object called OBJ which implements Runnable.

It has some members, a constructor, a run() method and a getter for a specific count (one of the members).

In my main method, I have an array of threads, each thread is a new OBJ, and each thread does a certain calculation in the run() method and saves it in the count .

Now, I want to make another loop (in addition to the one where I have started all the threads) and have each thread wait for it to complete and then use the count getter to count all the counts I get from the threads .

How to reach the getter through thread？

Workaround:

Okay, create the OBJ instance before reaching the thread loop：

List objects = new ArrayList();

// Create your objects here

for (int i = 0; i <NUM_OF_OBJ; ++i) {

objects.add(new OBJ());

}

// Run the threads

List threads = new ArrayList();

for (int i = 0; i <NUM_OF_OBJ; ++i) {

Thread t = new Thread(objects.get(i));

threads.add(t);

t.start();

}

// Wait for the threads to finish

for (Thread t : threads) {

t.join();

}

// Sum all counts

int sum = 0;

for (OBJ object : objects) {

sum += object.getCount();

}

Tag：java,multithreading,getter

Source： https://codeday.me/bug/20190621/1250460.html