What is the use of throws keyword, JAVA Programming

Assignment Help:

What is the use of throws keyword ?

Rather than explicitly catching an exception you can declare in which your method throws the exception. This passes the repsonsibility to handle it to the method in which invokes your method. This is done with the throws keyword. For instance,
public static void copy(InputStream in, OutputStream out)
throws IOException {

byte[] buffer = new byte[256];
while (true) {
int bytesRead = in.read(buffer);
if (bytesRead == -1) break;
out.write(buffer, 0, bytesRead);
}

}
A single method may have the potential to throw more than one kind of exception. In this case the exception clases are just separated through commas. For example,
public BigDecimal divide(BigDecimal value, int roundingMode) throws ArithmeticException, IllegalArgumentException

You can declare in which your method throws runtime exceptions though you do not have to. The major use of this is as documentation for the programmer. It can also be useful in white box testing.

 


Related Discussions:- What is the use of throws keyword

Dijkstra''s algorithm, How can I convert Dijkstra''s algorithm to do max fl...

How can I convert Dijkstra''s algorithm to do max flow instead of min flow, and how can I implement it into Ford Fulkerson algorithm?

I want someone to fix some bugs in a java app, I want someone to fix some b...

I want someone to fix some bugs in a java app Project Description: I have a small app in java, but it has some issues, the app is running. But we need to make it work more st

Explain animate gifs, Explain Animate gifs? We can save 16 gif images ...

Explain Animate gifs? We can save 16 gif images of the previous instance in a single file in the form of an animated gif, and then used it in a regular tag to display a movi

Calling the function, You may call function from any other place into your ...

You may call function from any other place into your JavaScript code. After the function is executed, the control goes back to other script which called it.  alert('Example 1: t

Medical services referral system - websphere administrator, Medical Service...

Medical Services Referral System:       Role : Websphere Administrator       Involved in Exposure to load balancing tools (BigIP, WAS plug-ins) and Siteminder.

Describe two reasons driving the termination of processes, Question 1: ...

Question 1: (a) Describe two reasons driving the termination of processes. (b) Discuss the five main steps the OS would implement once it has decided to create a new proc

I have javascript work, I have JavaScript work Project Description: I...

I have JavaScript work Project Description: I need an annonation type tool added It should be incredible simple for a good js coder. But there will be a custom design and

The software or script to scan automotive ads, The software or script to sc...

The software or script to scan automotive ads Project Description: Looking for a company that made the script or application to search through pages of listings of automotive

Define enumeration, Define enumeration? Enumeration is explained as val...

Define enumeration? Enumeration is explained as values type that having of a set of named values. These values are constants and are called enumerators. An enumeration type is

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