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

Hasnain

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
Dislike Bookmark

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
Dislike Bookmark

Java Spring Boot Trainer with 15+ Years Software Industry Experience

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
Dislike Bookmark

Computer Science Educator with25 years of teaching experience of onlie and Offline education

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
Dislike Bookmark

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
Dislike Bookmark

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
Dislike Bookmark

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
Dislike Bookmark

Trainer

throwing an exception explicitly
Comments
Dislike Bookmark

Salesforce Trainer

To Throw an exception
Comments
Dislike Bookmark

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
Dislike Bookmark

View 10 more Answers

Related Questions

best source to learn java from?
Main source if information on Java is oracle documentation. But it takes your time to read through, a lot more than you expect. Better prefer a trainer who can give what you need.
Himanshu
What is difference between C language and Java language?
Java is a purely object-oriented (class based) programming language that's designed to support the philosophy of "write once, run anywhere" i.e. compiled Java code runs on multiple platforms without re-compilation...
Poonam
0 0
5
What is difference between Multithreading and miltiprocessing?
Thread is a part of the program,so a program has multiple threads whereas multiprocessing means a cpu (or multiple cpu) process multiple programs at a time.
Milan
Which one of these lists contains only Java programming language keywords? A. class, if, void, long, Int, continue B. goto, instanceof, native, finally, default, throws C. try, virtual, throw, final, volatile, transient D. strictfp, constant, super, implements, do E. byte, break, assert, switch, include boolean -> true
Option B
Srikanth
Which programming language should one use for large scale machine learning, Java or C++?
Java but preferred language now is R or Scala or Python .
Rayaan
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

Hibernate 5
The Hibernate team published the first Hibernate 5 release quite a while ago, and since then they introduced a bunch of new features. I explained several of them here on the blog, and it’s about...
M

Mohammed Shahnawaz Akhter

2 0
0
1.3. Find the second largest element in an array.
public class Main { public static void main(String args) { int arr = {1, 3, 4, 6, 5}; int max = Integer.MIN_VALUE, secondMax = Integer.MIN_VALUE; for (int i = 0; i < arr.length; i++) { if (arr >...

Vivek J.

0 0
0
Core Java
Introduction: An Object Oriented Programming Language consists of Objects. There are object oriented programming languages like Smalltalk, C++. Each and every OOP language has some underlying disadvantages....

Gnv Satyanarayana

0 0
0
Inheritance In Java
Inheritance: The process of getting properties and behaviors from one class to another class is called inheritance. Properties: Variables Behaviors: Methods The main purpose of the inheritance...
D

Deleted U.

1 0
0
Example of DependsOnMethod in TestNG
public class dependsonM { @Test public void login() { System.out.println("login"); } @Test (dependsOnMethods = {"login"}) public void email() { //Intentionally I am failing this testcase Assert.assertTrue(false);...
S

Sarthak C.

0 0
0

Recommended Articles

Why Java is the Most Popular Programming Language

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 >

Some Popular IT Courses in Current Market

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 >

Why Should You Learn Java !

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 >

Top 5 Reasons to Learn JavaScript

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 >

Find Java Certification near you
Java Certification in Bangalore
Java Certification in Hyderabad
Java Certification in Pune
Java Certification in Chennai
Java Certification in Delhi
Java Certification in Mumbai
Java Certification in Kolkata
Java Certification in Noida
Java Certification in Gurgaon
Java Certification in Ghaziabad
Online Java Training

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