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Explain try and catch exception in java?
Why use exceptions instead of return values? 1. Forces error checking 2. Cleans up your code through separating the normal case from the exceptional case. (The code isn't littered along with a lot of if-else blocks checking return values.) 3. Low overhead for non-exceptional case
Traditional programming languages set flags or return bad values such as -1 to denotes problems. Programmers frequent don't check these values.
Java throws Exception objects to denotes a problem. These cannot be ignored.try-catchtry-catch public class HelloThere {
public static void main(String[] args) { try { System.out.println("Hello " + args[0]); } catch (ArrayIndexOutOfBoundsException e) { System.out.println("Hello Whoever you are."); }
}
Explain the Reading documentation for a class in the class library For instance, let's suppose you need to use the URL class in the java.net package. Through reading the docume
Question 4 Write a program that receives two integer inputs from a user, an ending value, lastvalue and column, column. The program will display all numbers from 1 to lastvalue
Prepare Android Antivirus with locate device capability Project Description: We need a developer that can develop an Android Antivirus similar to lookout Developer need to prov
I want Android App Notes Project Description: Seeking a developer to create a simple note application I don't need all the visualize features. I just want the user to t
Give the example of Using a class from the class library ? You use the java.net.URL class only like you'd use any other class along with these methods in which happens to be n
The Action Class is type of the Model and is a wrapper around the business logic. The purpose of Action Class is to change the HttpServletRequest to the business logic. To use the
What interface must an object implement before it can be written to a stream as an object? Ans) An object must execute the Serializable or Externalizable interface before i
Take the Student Choice GUI you created in Assignment and convert it to an applet. Because standalone GUI applications and applets are so similar, a lot of the code should be reus
Difference between Hash Map and Hash Table? The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and allows nulls. (HashMap allows null values
Kik Messenger is a plan mobile messenger like Skype. It's available on each major smart phone for Android and Iphone. Here is the entire process: Could be able to add multipl
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