Exercise 3.2

QUESTION

The point of this exercise is to practice reading code and to make sure that you understand the flow of execution through a program with multiple methods.

1. What is the output of the following program? Be precise about where there are spaces and where there are newlines.

          HINT: Start by describing in words that ping and baffle do when they are invoked.

      2. Draw a stack diagram that shows the state of the program the first time ping is invoked.

public static void zoop() {

baffle();

System.out.print("You wugga ");

baffle();
}
public static void main(String[] args) {

System.out.print("No, I ");

zoop();

System.out.print("I ");

baffle();

}
public static void baffle() {

System.out.print("wug");

ping();

}
public static void ping() {

System.out.println(".");

}

SOLUTION

1. 

No, I wug.

You wugga wug.

I wug.