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Why there is a need to use primary key in database ?
Primary key is a constraint basically used in datdabase to uniquely identify the records in the database.
I am supposed to call an external application (which is command-line based) and send input to the application from java. I created a batch file to call the application. It successf
This project is based on the teams example of chapter 1. Instead of teams, you will consider employees working in a department in a company. (Departments and employees are analog
Struts components can be classify into Model, View and Controller: ? Model: Components like business logic /business processes and data are the type of model. ? View: HTML, J
What is difference among LookupDispatchAction and DispatchAction? Ans) The difference among LookupDispatchAction and DispatchAction is that the actual method that gets known in
In RPC the method invoker waits for the method to finish implementation and return the control back to the invoker. Therefore it is completely synchronous in nature. Whereas in JMS
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
JRMP(java remote method protocol)
The Object class is the highest-level class in the Java class hierarchy. The Class is used to show the classes and interfaces that are loaded by a Java program..
What is the difference between a while statement and a do while statement? A while statement checks at the starting of a loop to see whether the next loop iteration should occu
Introduction As an alternative to the Binary Search algorithm, also it could be done by the brute-force method given below. public static int rank(int key, int[] a) { f
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