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Creating Thread objects from interface

In the example, they donā€™t extend the Thread class, but instead implement the Runnable interface. How will this provide access to the Thread class and the ability to instantiate new threads?

24th Dec 2017, 4:09 PM
ziggy
3 Respostas
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like this: class Loader implements Runnable { public void run() { System.out.println("Hello"); } } class MyClass { public static void main(String[ ] args) { Thread t = new Thread(new Loader()); t.start(); } }
24th Dec 2017, 9:18 PM
Vukan
Vukan - avatar
+ 1
Yes, I see how they use the Runnable interface, but how can you create a Class (the Thread class) which isnt imported/extended to the current class? Does the interface provide access to the class?
24th Dec 2017, 9:24 PM
ziggy
+ 1
I think I get what you are asking.. So in this case we aren't making a thread object (we are not extending the Thread class) but we are making a Runnable object which we pass to the constructor of a Thread. Vukan's code shows that we pass Loader to a Thread, more explicitly Runnable myLoader = new Loader(); Thread myThread = new Thread(myLoader);
25th Dec 2017, 12:00 AM
Dan Walker
Dan Walker - avatar