Data structure:

Write a small program with 4 methods named method1(), method2(), method3() and method4(). These methods have print statements saying "In method1" and " Exiting method1". In main, it starts with a print statement "In main method" then calls the various methods in various orders and ends with "Exiting main" print statement.

Write a first version of the this and and play around with the program. Change the order of method calls and play some more. Coding is fun!

Write 100 words or more about what you observe with various runs and what that means in terms of the call stack.