User defined exception

What is a user-defined exception in Java?

• An exception thrown by the JVM.
• An exception thrown by the user.
• An exception created by a programmer to handle specific scenarios.
• An exception that only occurs in user input.

Differentiate between predefined and user-defined exceptions.

• Predefined exceptions are thrown by users.
• Predefined exceptions are built-in, while user-defined exceptions are custom.
• Predefined exceptions are for runtime errors, user-defined for compile errors.
• There is no difference between them.

What are the two types of exceptions in Java?

• Checked and balanced exceptions.
• Normal and irregular exceptions.
• Checked and unchecked exceptions.
• System and application exceptions.

How can you raise a user-defined exception in Java?

• Use the "create" keyword.
• Use the "throw" keyword followed by an instance of a predefined exception.
• Create a new exception class, throw an instance using "throw".
• Use the "raise" keyword.

Is a user-defined exception checked or unchecked in Java?

• Only checked.
• Only unchecked.
• Either checked or unchecked, depending on parent class.
• None of the above.

Explain the purpose of using custom exceptions in Java.

• To replace predefined exceptions.
• To confuse other programmers.
• To enhance code clarity, manageability, and address specific errors.
• To make code more complex.

Can you manually raise an exception in Java?

• No, exceptions are only raised by the JVM.
• Yes, using the "raise" keyword.
• Yes, using the "throw" keyword
• Yes, using the "exception" keyword.

How does the finally block contribute to exception handling?

• It prevents exceptions from occurring.
• It's a placeholder in the code.
• It ensures code in the block is executed regardless of exceptions.
• It only runs when there are no exceptions.

Are user-defined exceptions related to the concept of pragmas?

• Yes, they are synonymous terms.
• Yes, both relate to file management.
• No, user-defined exceptions are part of Java's exception hierarchy.
• No, pragmas are specific to error messages.

What is the significance of multiple catch blocks in Java exception handling?

• They allow multiple exceptions to be thrown.
• They are optional and not significant.
• They enable handling different exceptions with specific code.
• They cause the program to crash.