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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."); }
}
data structure
What is the difference between an Interface and an Abstract class? An abstract class can have instance methods that execute a default behavior. An Interface can only declare co
A Padovan string P(n) for a natural number n is defined as: P(0)=''X'' P(1)=''Y'' P(2)=''Z'' for a string characters ''X'',''Y'',''Z'' only,and given value of n,write a program th
What is virtual function? While derived class overrides the base class method by redefining the same function, after that if client wants to access redefined the method from der
a) BeanNameAutoProxyCreator b) DefaultAdvisorAutoProxyCreator c) Metadata autoproxying
What is the difference between instance and object of a class? Few says both are same, then why java kept both the words for same thing?
What are object/relational mapping integration module? Ans) Spring also supports for using of an object/relational mapping (ORM) tool over straight JDBC by giving the ORM module
what is class constant of trigo triangle abc.
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Given the following XHTML page: Create an embedded JavaScript function named getUserInfo that prompts the user with the following two questions after the XHTML page has loa
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