Explanation of 'try catch finally' block in java programming

 try-catch-finally block in java programming

try block

To handle a run time error and monitor the results,we simply enclose the code inside a try block.If an exception occurs within the try block,it is handled by the appropriate exception handler (catch block) associated with the try block.A try block should have one (or more) catch blocks  or one finally block or both.Exception handlers are put in association with a try block by providing one or more catch block directly after the try block

Syntax of try catch and finally block

try {

//java statements(risky code)

    }

    catch(Exception e)

    {

    //handled code

    }

    finally

    {

        //cleanup code

        }

catch block

A catch block is specified by the keyword catch followed by a single argument within parentheses().A catch block is a group of java statements, enclosed in braces which are used to handle a specific exception that has been thrown.catch block should be placed after the try block.When an exception occurs in a try block, program control is transferred to the appropriate catch block.

finally block

The code within the finally block is always executed regardless of what happens within the try block .That is , if no exceptions are thrown, then no part of the code in the catch blocks is executed but code in the finally block is executed.