What is a checked exception

Assignment Help Basic Computer Science
Reference no: EM131318755

1. What is the difference between throwing an exception and catching an exception?

2. What is a checked exception? What is an unchecked exception? Is a NullPointerException checked or unchecked? Which exceptions do you need to declare with the throws reserved word?

3. Why don't you need to declare that your method might throw a NullPointerException?

Reference no: EM131318755

Questions Cloud

Write a program that checks spelling of all words in a file : The program should print out all words that it cannot find in the word list.
Can you spot a trend in the frequencies : Modify the BabyNames.java program so that it prompts the user for a file name. The numbers in the files have comma separators, so modify the program to handle them. Can you spot a trend in the frequencies?
Prints all names that are both boy and girl names : Write a program that reads a file in the same format as babynames.txt and prints all names that are both boy and girl names (such as Alexis or Morgan).
What is the purpose of the finally clause : What happens when an exception is thrown, the code of a finally clause executes, and that code throws an exception of a different kind than the original one? Which one is caught by a surrounding catch clause? Write a sample program to try it out.
What is a checked exception : What is a checked exception? What is an unchecked exception? Is a NullPointerException checked or unchecked? Which exceptions do you need to declare with the throws reserved word?
What techniques can be used to reduce npt induced overhead : One of the biggest impediments to widespread use of virtual machines is the performance overhead incurred by running a virtual machine. Listed below are various performance parameters and application behavior.
What is the longest possible penalty to trap to the vmm : If it is cut in half? If a virtual machine software company wishes to obtain a 10% performance degradation, what is the longest possible penalty to trap to the VMM?
Calculate the cpi again this time using a virtualized system : Calculate the CPI again, this time using a virtualized system. How do these CPIs change if the system has half the I/O accesses? Explain why I/O bound applications have a smaller impact from virtualization.
Contrast the ideas of virtual memory and virtual machines : Compare and contrast the ideas of virtual memory and virtual machines. How do the goals of each compare? What are the pros and cons of each? List a few cases where virtual memory is desired, and a few cases where virtual machines are desired.

Reviews

Write a Review

Basic Computer Science Questions & Answers

  Implementing and supporting heterogeneous networks

It is very common for corporations to support many types of network operating systems (NOSs). The most popular ones used are by Novell, Microsoft, Unix, Linux and Apple Macintosh. Explain in detail some major considerations and challenges when implem..

  Design and test using logic works

Design and test using Logic Works a dual-output function to implement a full-adder in Sum-of-Products form. Show the transistor count on your schematic.

  History of computers

Research project will have three major parts, so you can develop them in installments as you work through the course's topics. None of these topics are specifically covered in our course -- the objective is that you research the topics extensively.

  Write a basic java program called that simulates a lottery

Your program will generate a 5-digit lottery number, and then it will prompt the user to enter a guess in the form of a 5-digit number. Your program should then determine how many numbers.

  Additional web resources for telecommunication-network

You may search these questions or part of them on the web resource links available under "Additional Web Resources for Telecommunication & Network Security.pdf". If you do so, you must provide the reference to the resource as well as cite in your ..

  Execution by responding to a number of user initiated events

Demonstrate what you have learned in these first two chapters of VB by designing a user interface that controls the order of the tabs, set the initial properties of form controls, and then modifies properties during execution by responding to a..

  In what ways does it planning help managers exercise

In what ways does IT planning help managers exercise control in a situation? Does IT impact the truck driver of a company who delivers supplies to its customer?

  What is the total efficiency of the protoco

What is the total efficiency of the protocol with these three nodes?

  Have some expertise or knowledge

Directions: Think of a topic about which you have some expertise or knowledge, such as a sport you enjoy playing or a hobby you participate in. Plan an effective presentation explaining your topic and create a storyboard detailing each slide in y..

  Write a program to evaluate the polynomial

So far all the programs that we run on SPIM should be run on bare machine which has no user convenience. My slides on the 4th lecture notes show what settings you should choose. I am also attaching a screenshot here that shows the settings window.

  Advent of e-commerce the market for cross-border

With the advent of e-commerce the market for cross-border parcel shipments has grown Significantly. Various parcel shipment companies operate in metropolitan areas such as Bournemouth. Their service works well for larger companies, but SME's tend ..

  Explain company-s business intelligence products and service

Go to IBM.COM discover all company's business intelligence (BI) products and services Explain their process in minimum of half page to full page.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd