Question

Question 1: Please answer the following sub questions 1.1) What happens to connection information if you...

Question 1: Please answer the following sub questions

1.1) What happens to connection information if you change mysql port number?

1.2) Why is it important to create an interface?

1.3) Why would you want to use java interfaces?

1.4) Why override methods of interface and not just create them?

Homework Answers

Answer #1

1.1) If the MySQL port number changes, the existing connection will still continue to exist, but any new connection will fail to establish, and hence will throw exception.

1.2) An interface allows a developer to separate the functionality with its implementation. The user of an application need not worry about how the functionality is implemented and can straightaway use it. It creates fewer problems, increases user involvement, perfects functionality.

1.3) Interfaces are more flexible, because a class can implement multiple interfaces. Since Java does not have multiple inheritance, using abstract classes prevents your users from using any other class hierarchy. In general, prefer interfaces when there are no default implementations or state.

1.4)

An interface method does not have any implementation and is black. Whichever class is implementing the interface need to override the methods with their own implementations.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Question 1: Please answer the following sub questions 1.1) Why is it important to create C++...
Question 1: Please answer the following sub questions 1.1) Why is it important to create C++ abstract virtual class? 1.2) Why would I want to use a C++ abstract virtual class? 1.3) Why override methods of C++ abstract virtual class and not just create them?
QUESTION 1 Answer each of the following questions by TRUE or FALSE. (1.1) The correlation coefficient...
QUESTION 1 Answer each of the following questions by TRUE or FALSE. (1.1) The correlation coefficient between two variables is always between 0 and 1. (1.2) The t−statistic is an indicator of the level of significance of correlation. (1.3) The overall significance of a regression is determined by the R2 . (1.4) Moving average is a useful tool that helps dealing with seasonality in time-series. (1.5) The seasonal index is an indicator of forecast accuracy
Question 1 1.1. If a price floor were imposed on a competitive market, what would be...
Question 1 1.1. If a price floor were imposed on a competitive market, what would be the effect on the producer surplus and total economic surplus areas? (Use a typical demand-supply curve diagram in your answer.) 1.2. Explain why the slope of the demand curve is important to determining the effect of the price floor on the change in the size of consumer surplus area. (You can use a diagram if you wish.) 1.3. Describe a situation where you think...
*There is no additional information given regarding these questions. Just these scenarios" QUESTION 1 "One of...
*There is no additional information given regarding these questions. Just these scenarios" QUESTION 1 "One of the far desks has some old laptops on it. Miscellaneous equipment and computer parts are stacked on the floor around it. Under the desk, you see a small switch that is plugged into a power strip. It has some empty ports and appears to be on. You take a Raspberry Pi (RPI), a small single-board computer, out of your jacket pocket and plug it...
Below are survey questions please answer question 1-5 retaining survey questions How satiistisied are you with...
Below are survey questions please answer question 1-5 retaining survey questions How satiistisied are you with the coapny preformance? How did you hear about us? How would you rate quality of sercice the comany provides? How lilkey are you to use our sercice in the future? How did service meet you needs? What type of discount would uyou likly use? Would you be more likely to use our services if advetised with tv, magazine, newspaper? What gender are you? what...
CAN YOU PLEASE ANSWER AS SOON AS POSSIBLE AND PLEASE ANSWER ALL QUESTIONS THANK YOU 1/...
CAN YOU PLEASE ANSWER AS SOON AS POSSIBLE AND PLEASE ANSWER ALL QUESTIONS THANK YOU 1/ Create a short paragraph using the following terms: sound, pinna, auditory canal, tympanic membrane, ossicles, middle ear, oval window. 2/ Why cone receptors are able to send information about different frequencies of light? 3/In your own words, explain one way in which neuroplasticity allows learning and memory to occur 4/ Sleep is a behavioral state and play a key role in cognition. So how...
Philosophy2060 Moral issues in business. please answer the following questions. Reading 1.1 1-Solomon contends that ethics...
Philosophy2060 Moral issues in business. please answer the following questions. Reading 1.1 1-Solomon contends that ethics damage people’s careers. How and why does this happen? 2- Solomon describes the view that business and ethics don’t max as the “ myth of amoral business.” why does he think it is a myth? Do you agree? 3- Solomon suggested several times that unethical conduct hurts business as a whole. Why does he think this? Do you agree with him? 4-Of Solomon’s eight...
****PLEASE ANSWER ALL OF FOUR QUESTIONS!!!!**** QUESTION 1: You are curious about the average number of...
****PLEASE ANSWER ALL OF FOUR QUESTIONS!!!!**** QUESTION 1: You are curious about the average number of yards Matthew Stafford throws for each game for the Detroit Lions. You randomly select 30 games and see that the average yards per game is 269.1 with a standard deviation of 27.31 yards. You want to create a 90% confidence interval for the true average number of yards per game he throws. What is the margin of error for this estimate? QUESTION 2: You...
Answer the following questions in question/answer format. Questions 1-3, you should show calculations on how you...
Answer the following questions in question/answer format. Questions 1-3, you should show calculations on how you calculated your final answer. Each question is worth 2 points. 1. An infectious disease broke out in a village where men and women were given different medications. All infected persons had to go to the clinic to get injections once a day. Men were prescribed medication “A” which costs $400. Women were prescribed medication “B” which costs $150. The cost to administer the medication...
Use this information for questions 1, 2, and 3: You are given the following information about...
Use this information for questions 1, 2, and 3: You are given the following information about the market for reserves. The current federal funds rate is 1.5%, the discount rate is 1.75%, the interest rate paid on reserves is 1.25%, and the Fed owns $350 billion in government securities. Are there any discount loans outstanding? Why or why not? Suppose the increase in economic activity meant that banks started to increase their lending to businesses. Banks are making loans rather...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT