In a simple to understand explanation what is Runnable in Java

Question

What is  runnable  in Java  in layman s terms  I am an AP programming student in high school  whose assignment is to do research  or seek out from others what  runnable  is  we are just getting into OOP  and haven t touched threads yet

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Runnable is an interface defined as so   interface Runnable       public void run        To make a class which uses it  just define the class as  public  class MyRunnable implements Runnable    It can be used without even making a new Thread  It s basically your basic interface with a single method  run  that can be called    If you make a new Thread with runnable as it s parameter  it will call the run method in a new Thread    It should also be noted that Threads implement Runnable  and that is called when the new Thread is made  in the new thread   The default implementation just calls whatever Runnable you handed in the constructor  which is why you can just do new Thread someRunnable  without overriding Thread s run method

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A Runnable is basically a type of class  Runnable is an Interface  that can be put into a thread  describing what the thread is supposed to do   The Runnable Interface requires of the class to implement the method run   like so   public class MyRunnableTask implements Runnable        public void run                 do stuff here            And then use it like this   Thread t   new Thread new MyRunnableTask     t start      If you did not have the Runnable interface  the Thread class  which is responsible to execute your stuff in the other thread  would not have the promise to find a run   method in your class  so you could get errors  That is why you need to implement the interface   Advanced  Anonymous Type  Note that you do not need to define a class as usual  you can do all of that inline   Thread t   new Thread new Runnable         public void run                stuff here           t start      This is similar to the above  only you don t create another named class

[java] In a simple to understand explanation, what is Runnable in Java?

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