Answered: Please explain the ‘f()’ portion of the…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Hello. Please explain the ‘f()’ portion of the Java code below. If it is a function, where is it defined? What does it do in this context? Thanks, JZ // exceptions/InheritingExceptions.java // Creating your own exceptions class SimpleException extends Exception {} public class InheritingExceptions { public void f() throws SimpleException { System.out.println( "Throw SimpleException from f()"); throw new SimpleException(); } public static void main(String[] args) { InheritingExceptions sed = new InheritingExceptions(); try { sed.f(); } catch(SimpleException e) { System.out.println("Caught it!"); } } } /* Output: Throw SimpleException from f() Caught it! */

Expert Solution

Step 1

I assume you want to understand this:

public void f() throws SimpleException {
System.out.println( "Throw SimpleException from f()");
throw new SimpleException();

}

so basically f() is a simple function of vid type which throws a SimpleException, in it body part it prints "Throw SimpleException from f(), and then throws the exception.

In main function, where we are calling the f() function, we are catching the exception also.

InheritingExceptions sed = new InheritingExceptions();
try {
sed.f();

}
catch(SimpleException e)
{

System.out.println("Caught it!"); } } } /* Output: Throw SimpleException from f() Caught it! */

}