![Java Exception Handling Example
public class JavaExceptionExample{
public static void main(String args[]){
try{
//code that may raise exception
int data=100/0;
}catch(ArithmeticException e){System.out.println(e);}
//rest code of the program
System.out.println("rest of the code...");
}
}](https://image.slidesharecdn.com/exceptionhandlinginjava-201016063800/85/Exception-handling-in-java-9-320.jpg)
Exception handling in java
- 1. Exception Handling in Java Prof. Neeraj Bhargava Kapil Chauhan Department of Computer Science School of Engineering & Systems Sciences MDS University, Ajmer
- 2. Exception Handling in Java The Exception Handling in Java is one of the powerful mechanism to handle the runtime errors so that normal flow of the application can be maintained. An exception (or exceptional event) is a problem that arises during the execution of a program.
- 3. What is Exception Handling Exception Handling is a mechanism to handle runtime errors such as ClassNotFoundException, IOException, SQLException, RemoteException, etc.
- 4. Types of Java Exceptions There are mainly two types of exceptions: checked and unchecked. Here, an error is considered as the unchecked exception. Checked Exception Unchecked Exception
- 5. Difference between Checked and Unchecked Exceptions 1) Checked Exception The classes which directly inherit Throwable class except RuntimeException and Error are known as checked exceptions e.g. IOException, SQLException etc. Checked exceptions are checked at compile-time.
- 6. Cont.. 2) Unchecked Exception The classes which inherit RuntimeException are known as unchecked exceptions e.g. ArithmeticException, NullPointerException, ArrayIndexOutOfBoundsException etc. Unchecked exceptions are not checked at compile-time, but they are checked at runtime.
- 7. Java Exception Keywords Try The "try" keyword is used to specify a block where we should place exception code. The try block must be followed by either catch or finally. It means, we can't use try block alone. Catch The "catch" block is used to handle the exception. It must be preceded by try block which means we can't use catch block alone. It can be followed by finally block later.
- 8. Cont.. Finally The "finally" block is used to execute the important code of the program. It is executed whether an exception is handled or not. Throw The "throw" keyword is used to throw an exception.
- 9. Java Exception Handling Example public class JavaExceptionExample{ public static void main(String args[]){ try{ //code that may raise exception int data=100/0; }catch(ArithmeticException e){System.out.println(e);} //rest code of the program System.out.println("rest of the code..."); } }
- 10. Assignment Explain Exception handling in java with example.