Explain try and catch statements in Java ?

Posted in: Java Exceptions

The try/catch statement encloses some code and is used to handle errors and exceptions that might occur in that code. Here is the general syntax of the try/catch statement:

try {
    body-code
} catch (exception-classname variable-name) {
    handler-code
}

The try/catch statement has four parts. The body-code contains code that might throw the exception that we want to handle. The exception-classname is the class name of the exception we want to handle. The variable-name specifies a name for a variable that will hold the exception object if the exception occurs. Finally, the handler-code contains the code to execute if the exception occurs. After the handler-code executes, execution of the thread continues after the try/catch statement. Here is an example of code that tries to create a file in a non-existent directory which results in an IOException.