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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 BeanFactory is like a factory class that having a collection of beans. The BeanFactory holds Bean Definitions of multiple beans within itself and then instantiates the bean whene
What are adding methods? A subclass isn't restricted to changing the behavior of its superclass. It can also add fully latest techniques and fields that are not shared along wi
Describe, in general, how java garbage collector works?
GUI-Based Application Objectives: (1) Learning how to write a GUI-based application in Java. (2) Learning how to write an event driven application program in Java.
what is the use of design pattern in java ?
Project Description: The program must work on all realms, all ladders, all cores (4x realms,2x ladders,2x cores) The program must be unpatchable and undetectable If patche
What are the Sub categories of Artificial Intelligence? Briefly explain any two. 1. Robotics : These are the machines that are computer programmed and perform work that was pr
Create a class to implement the ArrayList collection. The name should be YourFirstNameArrayList; for example if I were creating the class then I would call it WaynesArrayList. Do
Java Programming 1. Write a program in Java to find the highest of any five numbers. How do you compile and execute this Java program? 2. Write a program to explain the Exce
What is Multiple Inheritance ? A few object oriented languages, notably C++, permits a class to inherit from more than one unrelated class. This is known as multiple inheritanc
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