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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."); }
}
What are the types of Dependency Injection Spring supports? Ans) there are two types of Dependency Injection Spring a) Setter Injection: b) Constructor Injection:
The Post Office Protocol is an application-level protocol within an intranet which is used by the local e-mail clients to send and retrieve e-mails from a remote server those are l
Why hub is used in networks? Hub is networking equipment and a device that connects various computers to form a network. In a network the NIC translates the message within elec
definition
What are the kinds of computer network according to the distance among nodes? The kinds of computer network according to the distance among nodes are: 1. LAN 2. WAN
Difference between the File and Random Access File classes? Ans) The File class encapsulates the files and directories of the local file system. The Random Access File class giv
how can I do that project in java programming
The JMS provider handles security of the messages, data conversion and the client triggering. The JMS provider verifies the level of encryption and the security level of the messag
In this assignment, you will gain experience implementing the java.util.List interface. This includes writing an inner class called Node and another inner class called CS228LinkedL
How much CPU time does an applet get? One of the few legitimate concerns about hostile applets is excessive use of CPU time. It is possible on a non-preemptively multitasking s
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