what is exception in java

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Mira
10 Jan 2021
1In java exception is an object. Exceptions are created when an abnormal 
2situations are arised in our program. Exceptions can be created by JVM or 
3by our application code. All Exception classes are defined in java.lang. 
4In otherwords we can say Exception as run time error.
5
Luis
15 Feb 2016
1An exception is an event, which occurs during the execution of a 
2program, that disrupts the normal flow of the program's instructions.
Ivanna
06 Aug 2019
1In java exception is an object. Exceptions are created when an abnormal 
2situations are arised in our program. Exceptions can be created by JVM or 
3by our application code. All Exception classes are defined in java.lang. 
4In otherwords we can say Exception as run time error. I use try & catch blocks 
5to handle any exceptions in my code. 
6  I am familiar with major checked and unchecked exceptions and 
7  handle it accordingly to make my code execution smooth
Giuseppe
22 Oct 2017
1
2public class Exception8 {
3public static void main(String[]args)
4{
5   fun1();
6   fun2();
7}
8static void fun1()
9{
10   	fun3();
11}
12static void fun2()
13{
14     	fun3();
15}
16static void fun3()
17{
18	try {
19	System.out.println(20/0);
20	}
21	catch(ArithmeticException e)
22	{
23		System.out.println("Zero divison ");
24	}
25}
26}
27
Cameron
23 Feb 2018
11.Unchecked: occurs during run time
22.Checked Exceptions:occurs during the compile time. 
3needs to be handled IMMEDIATELY
4Exception handling: try & catch: blocks, used for handling the exception 
5 
6throws keyword is used within the method signature 
7disadvantage is: throws keyword whoever calls the method 
8will have to handle the exception again but with 
9try/catch you handle once. Try/catch is better way to handle it 
10in utility class. Next time you call method you don’t get any exceptions
11 
12most common Exception like NullPointerExceptio, 
13ArrayIndexOutOfBound, ClassNotFoundException, IOException.
14are unchecked and they are descended from java.lang.RuntimeException
15In Selenium: nosuchelement, nostaleexception, nosuchaframe 
16In SQL: SQL exception 
Meissa
13 Aug 2019
1We can handle exceptions in either of the two ways :
21) By specifying try catch block where we can catch the exception.
32) Declaring a method with throws clause 
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