Explain try and catch exception in java, JAVA Programming

Assignment Help:

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-catch
try-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.");
}

}


Related Discussions:- Explain try and catch exception in java

Java is object oriented programme language, Java is Object oriented program...

Java is Object oriented programme language Java is comprehensively OOP language with robust memory system Memory errors largely disappear due to safe pointers and garbage c

Explain preemptive scheduling and time slicing, In preemptive scheduling, t...

In preemptive scheduling, the highest priority task executes until it enters the waiting or dead states or a higher priority task comes into existence. In time slicing, a task i

Spring framework, Spring framework The Spring framework is the leading...

Spring framework The Spring framework is the leading full-stack J2EE /JAVA application framework. Not like other applications, Spring does not expose itself on the design of a

Loop statements, A loop is a set of commands which executes repeatedly till...

A loop is a set of commands which executes repeatedly till a denoted condition is met. JavaScript supports two loop statements: for & while. Additionally, you can employ the break

Describe the java collections framework? , Comparable interface: The "Com...

Comparable interface: The "Comparable" allows itself to compare with other same types of object. The function compareTo() is specified in the interface. Several of the standa

Registered objects in a rmiregistry, How to get all the registered objects ...

How to get all the registered objects in a rmiregistry? Ans) Using list method of Naming Class.

Loops, Use a while loop to count down from 100 and display all the numbers ...

Use a while loop to count down from 100 and display all the numbers in the * following pattern (you have to figure out what the pattern is - don''t go below 0): * 100 99 97 94

Application rewrite, Application Rewrite Project Description: There i...

Application Rewrite Project Description: There is an app that I want to be rewritten in order to support multiple profiles. The App is an OTP generator. It is required to

Answer, a program to find the area under curve y=f(x) between x=a and x=b,i...

a program to find the area under curve y=f(x) between x=a and x=b,integrate y=f(x) between the limits of a and b

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd