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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."); }
}
J2EE prepares use of the JNDI interface to access different resources like JMS, JDBC, EJB etc. The client finds up for these resources through the JNDI look-up. The JNDI look like
How does JVm do dynamic checking The JVM also does "dynamic" checking at runtime for certain operations, like pointer and array access, to make sure they are touching only memo
Explain The different kinds of exceptions ? Checked Exceptions : Environmental error in which cannot necessarily be detected through testing; e.g. broken socket, disk full,
What is difference between time slicing and preemptive scheduling? Differences between preemptive and time scheduling are: In case of Preemptive scheduling the highest prior
Write a JSP to display a table that contains factorials for the numbers from 0 to 10,
The Local Systems IP Address and Port Number and the Remote System's IPAddress and Port Number.
write code employe managment
BoardColoring.java program for 2D MXM matrix
Normal 0 false false false EN-US X-NONE X-NONE
Java Server Pages (JSP) is a platform independent presentation layer technology that comes with SUN s J2EE platform. JSPs are normal HTML pages with Java code pieces embedded in th
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