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

Regex , Having trouble with a lab, need to

Having trouble with a lab, need to

What is the order of function invocation in an applet? , The Applet's life ...

The Applet's life cycle functions are as follows: public void init() : Initialization function called only once by the browser. public void start() : Method called after

Describe graphics objects, Describe Graphics Objects ? In Java all draw...

Describe Graphics Objects ? In Java all drawing takes place via a Graphics object. This is an example of the class java.awt.Graphics. Initially the Graphics object you use w

Enumerate the concept of write once run anywhere - java, Enumerate the conc...

Enumerate the concept of write once run anywhere - JAVA Java has introduced concept of WORA (write once run anywhere). When you write a java program it is called source code of

Application for android studio, 1- I need application used android studio w...

1- I need application used android studio with source code and all file . same this application : 2-">https://play.google.com/store/apps/details?id=com.magnetic.openmaps&hl=en 2

Differences between AOP and OOP, Normal 0 false false false...

Normal 0 false false false EN-US X-NONE X-NONE      Obj ec t Ori e n

Write a bouncing ball game, Write a bouncing ball video game. The game is s...

Write a bouncing ball video game. The game is similar to the one described and depicted in Figure of the text book. The balls bounces within the screen where the two horizontal wal

Retrieving file records randomly, how to retrieve multiple records randomly...

how to retrieve multiple records randomly from a file and store it in another file

Describe in brief about the polymorphism, Describe Polymorphism? Polymo...

Describe Polymorphism? Polymorphism can be referred as one name many forms. It's the ability of methods to behave differently, depending upon object who is calling it. Key feat

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