What is the difference between checked and unchecked exceptions?

Asked by Last Modified  

15 Answers

Learn Java

Follow 1
Answer

Please enter your answer

Chetan Santha

Professional Tutor with 15 years of experience.

The main difference between checked and unchecked exception is that the checked exceptions are checked at compile-time while unchecked exceptions are checked at runtime
Comments
Dislike Bookmark

Senior Software Engineer

Checked Exception in Java is all those Exception which requires being catches and handled during compile time. If Compiler doesn’t see try or catch block handling a Checked Exception, it throws Compilation error. Now Which Exception is checked Exception and Why Checked Exception are introduced in first...
read more
Checked Exception in Java is all those Exception which requires being catches and handled during compile time. If Compiler doesn’t see try or catch block handling a Checked Exception, it throws Compilation error. Now Which Exception is checked Exception and Why Checked Exception are introduced in first place? All the Exception which are direct sub Class of Exception but not inherit RuntimeException are Checked Exception. read less
Comments
Dislike Bookmark

Software Engineer with 15 years of Professional experience in MNCs (JP Morgan, TCS, Mastek)

A checked exception must either be handled within a catch block or declared with a throws clause in the method declaration. If not, the compiler will throw an error. There are no such restrictions with unchecked exceptions.
Comments
Dislike Bookmark

Software Engineer with 15 years of Professional experience in MNCs (JP Morgan, TCS, Mastek)

A checked exception usually occurs out of an exceptional situation that your application should reasonably try to recover from. For example, on catching a FileNotFoundException your program could prompt the user for the correct file path again. An unchecked exception usually occurs because of a bug...
read more
A checked exception usually occurs out of an exceptional situation that your application should reasonably try to recover from. For example, on catching a FileNotFoundException your program could prompt the user for the correct file path again. An unchecked exception usually occurs because of a bug in your application. Hence, instead of catching the exception, you fix the underlying logic of your program. For example, if you incorrectly access an array at an index that lies outside its size, an IndexOutOfBoundsException is thrown. read less
Comments
Dislike Bookmark

Tutor

meant for conditonal based response for exception handling
Comments
Dislike Bookmark

Software Development Trainer

Checked exceptions are checked at compile time. Like if you are trying to read a file, then there are chances of getting an exception. So compiler forces use to use either try...catch block or use throws(at function level). But unchecked exceptions are which ain't checked for at compile time. Like...
read more
Checked exceptions are checked at compile time. Like if you are trying to read a file, then there are chances of getting an exception. So compiler forces use to use either try...catch block or use throws(at function level). But unchecked exceptions are which ain't checked for at compile time. Like in case you are dividing a number via another. There are chances of getting divide by zero exception but compiler doesn't force you to use try...catch or throws. read less
Comments
Dislike Bookmark

10 years of Hadoop Spark Expertise

checked exception has been thrown at the time of compilation, we can handle in two ways we can handle this by try catch block or we can throw this exception. Un checked exceptions are the exceptions thrown at the time of run time, we can handle this by using try and catch blocks.
Comments
Dislike Bookmark

Trainer

Checked exceptions, as the name indicates, are checked at compile time. It extends the Throwable as well as Error exception classes. They are like syntactical errors and are detected by compiler at compile time. Examples of Checked exceptions: IOException and SQLException. Whereas Unchecked exceptions...
read more
Checked exceptions, as the name indicates, are checked at compile time. It extends the Throwable as well as Error exception classes. They are like syntactical errors and are detected by compiler at compile time. Examples of Checked exceptions: IOException and SQLException. Whereas Unchecked exceptions are checked at run-time and they extend Throwable and Runtime exception classes. Examples of Unchecked exceptions: ArithmeticException and NullPointerException. read less
Comments
Dislike Bookmark

More than 12 years of experience in IT Industry including Science/Computer teaching

1) Checked Exception The classes that extend Throwable class except RuntimeException and Error are known as checked exceptions e.g.IOException, SQLException etc. Checked exceptions are checked at compile-time. 2) Unchecked Exception The classes that extend RuntimeException are known as unchecked...
read more
1) Checked Exception The classes that extend Throwable class except RuntimeException and Error are known as checked exceptions e.g.IOException, SQLException etc. Checked exceptions are checked at compile-time. 2) Unchecked Exception The classes that extend RuntimeException are known as unchecked exceptions e.g. ArithmeticException, NullPointerException, ArrayIndexOutOfBoundsException etc. Unchecked exceptions are not checked at compile-time rather they are checked at runtime. read less
Comments
Dislike Bookmark

Principal Software Engr with good JAVA, J2EE, SQL skills

For Checked exceptions we need to catch or declare to be thrown using 'throws' at method signature. For Unchecked exceptions we no need to all these.
Comments
Dislike Bookmark

View 13 more Answers

Related Questions

Which book is good for groovy and grails
Hi, The Best Book I suggest is "Beginning Groovy and Grails: From Novice to Professional"
Sumit S.
Should I learn a Python course online or offline? What are some good Python training classes?
Online with TechyBees Educon Pvt Ltd
Neha
0 0
8
Which is true about an anonymous inner class? A. It can extend exactly one class and implement exactly one interface. B. It can extend exactly one class and can implement multiple interfaces. C. It can extend exactly one class or implement exactly one interface. D. It can implement multiple interfaces regardless of whether it also extends a class.
C
Srikanth
If a class contains only a private constructor and no other constructor, is it possible to create object of that class? If yes how?
Yes, It is possible. But, Object can be created only with in that class (either in any method or block).
Shabbir
Is it good to go for a Java coaching center and learn Java (with advanced Java) to improve my programming skills?
yes, Please check the Institute reviews and discuss with the tutor, what topics were covered in class. Ask about the practicals session and how many hours/duration of the course.
Gerda
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

doWhile example in Java
public class doWhilePracticleEx { public void test() { } public static void main(String args) { String q1 = "Who is PM of India?"; String a1 = "Sonia Gandhi"; String a2 = "Rahul Gandhi"; String a3...
S

Sarthak C.

0 0
0
Why Should We Learn Java Language?
Most of starters has confusion today that which of the programming language should be chosen to work on. It totally depends upon your need. As per my opinion, if you want to grow your career in IT industry...

Gaurav

0 0
0
Java and C trainer
Always think any conspect with real-time example like Object -- object must have states and behaviour then only we will call that thing is Object like fan is Object (rotating,color)

Jadav Avinash

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
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...

Dev Group

2 0
0

Recommended Articles

Java: An Object-Oriented Language

Java is the most commonly used popular programming language for the creation of web applications and platform today. Integrated Cloud Applications and Platform Services Oracle says, “Java developers worldwide has over 9 million and runs approximately 3 billion mobile phones”.  Right from its first implication as java 1.0...

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 >

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 >

Find Oracle Java Certification near you
Oracle Java Certification in Bangalore
Oracle Java Certification in Hyderabad
Oracle Java Certification in Pune
Oracle Java Certification in Chennai
Oracle Java Certification in Delhi
Oracle Java Certification in Mumbai
Oracle Java Certification in Kolkata
Oracle Java Certification in Noida
Oracle Java Certification in Gurgaon
Oracle 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