What is the purpose of using throws keyword in java?

Asked by Last Modified  

12 Answers

Learn Java

Follow 9
Answer

Please enter your answer

The throws statement is how you create an exception stack trace. There isn't much magic in java--it's not some underlying system mystery that creates an exception, it is simply a "Throw" statement, and therefore the last few entries in any stack trace will probably be throw. It's not JUST the last one...
read more
The throws statement is how you create an exception stack trace. There isn't much magic in java--it's not some underlying system mystery that creates an exception, it is simply a "Throw" statement, and therefore the last few entries in any stack trace will probably be throw. It's not JUST the last one because in many cases exception handling consists of something like this: try { do something that might cause an exception catch(ExpectedException e) { throw new DifferetnException(e); } This lets you change what type of exception it was or add a better textual description or even handle some of the exceptions while re-throwing the others. Because of this it is often the last few levels (and maybe some in-between) that are caused by the "Throw" statement. read less
Comments

Unlimited learning from classes 6 to 10 (Mathematics) and Programming languages (C,C++,Java)

Throws kW is used with method signature. With throws k/w exception is not handled. It should be handled with try catch block.With throws k/w checked exceptions can be propagated which can not be propagated with throw k/w.
Comments

Private Online Java Training by Exp Software Engineer

The 'throws' keyword is used to delegate the exception handling mechanism to the caller of the function. It is generally put in the function definition, thereby indicating to the caller of the function to handle it using try and catch. public static void fun() throws MyException { //code } public static...
read more
The 'throws' keyword is used to delegate the exception handling mechanism to the caller of the function. It is generally put in the function definition, thereby indicating to the caller of the function to handle it using try and catch. public static void fun() throws MyException { //code } public static void main (String args[]) { try { fun(); } catch { } } read less
Comments

IT Professional Trainer with 21 years of experience in education field

The keyword throws in Java is used to declare an exception. It is instruction to the programmer that exception may occur so make provision for exception handling so that normal flow can be maintained.
Comments

Tutor

If a function is not handling the exception throws clause can be added to the function signature. This includes the list of exceptions which can be thrown by the function
Comments

Computer Teacher

Throws may be used, if we want o execute block of segment of code within it i.r throws section. if error encountered and we wish to execute certain code for that error we can use throws not necessary but may be use for better response.
Comments

Techer | Full Stack, Power BI Trainer | 10 Years Exp.

Throws basically uses for declaring one or more exceptions. You can use it without declaring try-catch block
Comments

Trainer

throwing an exception explicitly
Comments

Salesforce Trainer

To Throw an exception
Comments

It is used to declare an exception. It gives an information to the programmer that there may occur an exception so it is better for the programmer to provide the exception handling code so that normal flow can be maintained. Exception Handling is mainly used to handle the checked exceptions. If there...
read more
It is used to declare an exception. It gives an information to the programmer that there may occur an exception so it is better for the programmer to provide the exception handling code so that normal flow can be maintained. Exception Handling is mainly used to handle the checked exceptions. If there occurs any unchecked exception such as NullPointerException, it is programmers fault that he is not performing check up before the code being used. read less
Comments

View 10 more Answers

Related Questions

What are different IDEs available to write programs?
There are many IDE for programming like TurboC++,Dev C++ for C and C++ programming. Eclipse,Notepad++,Dreamweaver for HTML,PHP,JAVA,ASP etc languages.
Meraj
0 0
5
What is an Exception in Java?
We can Say Exception is an event which terminates the normal execution of a program
Piyush
0 0
5
When we are used the compiler and interpreter? what is the difference between them?
compiler compiles whole page or file at one time but interpreter executes line by line like we do using debugger
Shilpa
Which is a good Java training and placement institute for a fresher in Bangalore?
I know an institute in HYderabad which is giving 100% job guarantee or 100% fee refund. They have office in bangalore also, not sure whether they are offering this program in Bangalore. Please visit their...
Raja
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons


Class and Objects in Java
Class is a template or a blueprint which is used to describe an object. On other hand Object is a reference of a class which follows all the stuff written inside the class. How about taking the whole tour in the following video

1.2. Find the largest element in an array.
public class Main { public static void main(String args) { int arr = {1, 2, 3, 4, 5}; int max = arr; for (int i = 1; i < arr.length; i++) { if (arr > max) { max = arr; } } System.out.println("Largest Element: " + max); }}

Constructor in Java
A constructor is a particular type of method that is used to initialise the object. The constructor is invoked at the time of object creation. It constructs the values, i.e. provides data for the object...

Basic Concepts of Web Designing
An introduction to domain names, web servers, and website hosting 1)What is the web? In a nutshell, the web is a whole bunch of interconnected computers talking to one another. The computers (on the...

Recommended Articles

Designed in a flexible and user-friendly demeanor, Java is the most commonly used programming language for the creation of web applications and platform. It allows developers to “write once, run anywhere” (WORA). It is general-purpose, a high-level programming language developed by Sun Microsystem. Initially known as an...

Read full article >

In the domain of Information Technology, there is always a lot to learn and implement. However, some technologies have a relatively higher demand than the rest of the others. So here are some popular IT courses for the present and upcoming future: Cloud Computing Cloud Computing is a computing technique which is used...

Read full article >

Java is the most famous programming language till date. 20 years is a big time for any programming language to survive and gain strength. Java has been proved to be one of the most reliable programming languages for networked computers. source:techcentral.com Java was developed to pertain over the Internet. Over...

Read full article >

Before we start on the importance of learning JavaScript, let’s start with a short introduction on the topic. JavaScript is the most popular programming language in the world, precisely it is the language - for Computers, the Web, Servers, Smart Phone, Laptops, Mobiles, Tablets and more. And if you are a beginner or planning...

Read full article >

Looking for Java Training Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you