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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."); }
}
For this assignment, you will simulate a file system. You will be neither creating files nor reading or writing disk files. Rather, you will have a simulation of a file system that
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
The Struts tag libraries are: ? HTML Tags ? Logic Tags ? Template Tags ? Bean Tags ? Tiles Tags ? Nested Tags
Write a program called Power that displays the positive powers of 2. When the user enters the exponent at a prompt, the program displays 2 to that power. The program halts when the
JAVA Programming
Due to impedance mismatch between relational technology and object you need to understand the progress of mapping classes (objects) and their relationships to tables and relationsh
Payroll Calculator for Both Hourly and Commission Employees In assignment 13, we will create a payroll calculator that calculates gross pay , taxes , and net pay fo
List down the names of two array techniques available in JavaScript. The two techniques thata rae available in java script is: 1. sort( ) [sorts elements within alphabetical
Automated the claim sub-system: Insurance Domain: CIA-MI Type Development - Web-based Application Role
When multiple threads working, Synchronization is to lock a method for a certain object.
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