Create a multithreaded program by using Runnable interface and then create, initialize and start four Thread objects from your class. The threads will execute concurrently and display the following String array elements.
String course [ ] = {"Apple", "Banana", "Orange", "Mango"};
The first thread displays the first element of the string array. (Apple)
The second thread displays the second element of the string array. (Banana)
The third thread displays the third element of the string array. (Orange)
The fourth thread displays the fourth element of the string array. (Mango)
When executed, the program will run the threads at least 3 times before exiting