Exception handling in Java is extremely important because it helps maintain the normal, desired flow of the program even when unexpected events occur. If exceptions are not handled, programs may crash or requests may fail.

In this course, you will analyze the syntax of exception handling, case by case, to understand what could happen in each variation. You’ll start by looking into multiple cases using the try-catch block, things like what happens if you throw multiple exceptions.

You’ll then look at exception handling and use cases around the syntax of the usage of finally, another popular exception block.

Lastly, you’ll experiment with the throw block and creating your own custom exceptions. By the end of this course, you will have a good grip on exception handling and its various syntaxes and use cases.

Java Exception Handling Made Simple

Let's briefly go over the syntax and then jump straight into the cases.



class Exceptions {
    public static void main( String args[] ) {
            
        try{
            // exception thrown here
        }catch(Exception e){
            // exception caught here  
        }

    }
}

The `try` block contains the block of code where you (the programmer) believe an exception might occur e.g., the user enters 0 as an input for a divide operation, which might result in an `ArithmeticException`. To prevent the system from breaking, those exceptions are handled in the catch block.

Here, we'll discuss different variations in which the try-catch block can occur and you can test your understanding by completing the quizzes below.

We'll walk through multiple cases using the try-catch block in a quiz-based style.

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A Little Fun With Try-Catch

Cases

Can we throw multiple exceptions?