What is the purpose of try-catch-finally in Java?

What is the purpose of try-catch-finally in Java?

The try-catch-finally construct in Java is used for handling exceptions. The 'try' block contains code that might throw an exception, the 'catch' block handles the exception if it occurs, and the 'finally' block executes code regardless of whether an exception was thrown or not.

Can you give me an example of how to use try-catch-finally?

Sure! Here's a simple example:

try {
    int result = 10 / 0; // This will throw an ArithmeticException
} catch (ArithmeticException e) {
    System.out.println("Cannot divide by zero!");
} finally {
    System.out.println("This will always execute.");
}

What happens if I don't use finally?

If you don't use the 'finally' block, any cleanup code you want to execute after the try-catch will not run if an exception occurs. However, if the exception is caught and handled, the program will continue executing normally.

Is it possible to have multiple catch blocks?

Yes, you can have multiple catch blocks to handle different types of exceptions separately. This allows for more specific error handling.