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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."); }
}
A Scrollbar is a Component while Scroll Panel is a Container. A Scroll Panel handles its own events and performs its own scrolling.
What are synchronized methods and synchronized statements? Synchronized methods are methods that are used to control access to an object. A thread only implements a synchronize
Classifieds Android app from my Word press Classifieds website with Google gps/ map augmented reality for ads Project Description: 1. Prepare an Android Classifieds app for m
Class diagram technique is vital within Object Oriented functions. Class diagrams illustrate the kinds of objects in the system and the several static relationships among them. Cl
Objectives 1. To help you become comfortable with using inheritance and interfaces to construct type hierarchies. 2. To familiarize you with programming from specifications. A
Why we Avoiding Short Circuits ? If you need all of your boolean expressions evaluated regardless of the truth value of each, then you can use & and | instead of && and ||. The
ActionServlet performs the role of Controller: ? Process user requests ? Verify what the user is trying to achieve according to the request ? Pull data from the model (if
On the surface, an application context is similar as a bean factory. But application context offers much more.. ? Application contexts give a means for resolving text messages,
Task Your task is to write a Java program that allows users to play the game of Brickles. (note: it is up to you whether to use the skeleton). The prog
Develop E-Commerce Website I need an E-Commerce website for my furniture shop which requires to an online store to buy products online. So, Skills required: HTML, Java, Gr
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