Java Chapter 10 Questions and Answers with Certified Solutions

Java Chapter 10 Questions and Answers with Certified Solutions What is the primary purpose of exception handling in Java? To manage runtime errors and maintain normal program flow How do you declare a try-catch block in Java? By using `try { } catch(Exception e) { }` What happens if an exception is not caught in a Java program? The program terminates and prints a stack trace Which keyword is used to define a custom exception in Java? `throw` What is the difference between checked and unchecked exceptions? Checked exceptions must be handled or declared, while unchecked exceptions do not require explicit handling 2 Which Java class is the parent of all exceptions? `Throwable` How can you ensure that a block of code always executes, regardless of whether an exception occurs? By using a `finally` block What is the purpose of the `throws` keyword in a method signature? It declares exceptions that a method might throw How do you create a user-defined exception in Java? By extending the `Exception` class What is an `ArithmeticException` in Java? An exception that occurs when an illegal arithmetic operation, like division by zero, is performed What does the `getMessage()` method do in an exception object? 3 It returns a detailed error message about the exception Can multiple catch blocks be used for a single try block? Yes, multiple catch blocks can handle different exception types What is the purpose of the `finally` block? It ensures that a specific block of code executes regardless of whether an exception occurs What happens if an exception is thrown in the `finally` block? It overrides any previous exceptions thrown in the `try` block Can a `finally` block be used without a `catch` block?