Java Programming Final

__________ represents an entity in the real world that can be distinctly identified.

_______ is a construct that defines objects of the same type.

An object is an instance of a __________.

The keyword __________ is required to declare a class.

________ is invoked to create an object.

Given the declaration Circle x = new Circle(), which of the following statement is most accurate. A. x contains an int value. B. x contains an object of the Circle type. C. x contains a reference to a Circle object. D. You can assign an int value to x.

The default value for data field of a boolean type, numeric type, object type is ___________, respectively. A. true, 1, Null B. false, 0, null C. true, 0, null D. true, 1, null E. false, 1, null

Analyze the following code: public class Test { public static void main(String[] args) { double radius; final double PI= 3.15169; double area = radius * radius * PI; System.out.println("Area is " + area); } } A. The program has compile errors because the variable radius is not initialized. B. The program has a compile error because a constant PI is defined inside a method. C. The program has no compile errors but will get a runtime error because radius is not initialized. D. The program compiles and runs fine.

When invoking a method with an object argument, ___________ is passed. A. the contents of the object B. a copy of the object C. the reference of the object D. the object is copied, then the reference of the copied object

You can declare two variables with the same name in __________. A. a method one as a formal parameter and the other as a local variable B. a block C. two nested blocks in a method (two nested blocks means one being inside the other) D. different methods in a class

A Java exception is an instance of ________. Question options: A) NumberFormatException B) Throwable C) Exception D) RuntimeException E) Error

An instance of ________ describes the errors caused by your program and external circumstances. These errors can be caught and handled by your program. Question options: A) Throwable B) RuntimeException C) Error D) Exception E) NumberFormatException

An instance of ________ describes system errors. If this type of error occurs, there is little you can do beyond notifying the user and trying to terminate the program gracefully. Question options: A) Throwable B) RuntimeException C) NumberFormatException D) Error E) Exception

Which of the following is not an advantage of Java exception handling? Question options: A) Exception handling makes it possible for the caller's caller to handle the exception. B) Exception handling simplifies programming because the error-reporting and error-handling code can be placed at the catch block. C) Exception handling improves performance. D) Java separates exception handling from normal processing tasks.

What is displayed on the console when running the following program? class Test { public static void main(String[ ] args) { try { System.out.println("Welcome to Java"); int i = 0; int y = 2/i; System.out.println("Welcome to Java"); } catch (RuntimeException ex) { System.out.println("Welcome to Java"); } finally { System.out.println("End of the block"); } } } Question options: A) The program displays Welcome to Java three times followed by End of the block. B) The program displays Welcome to Java two times. C) The program displays Welcome to Java three times. D) The program displays Welcome to Java two times followed by End of the block.

What is displayed on the console when running the following program? class Test { public static void main (String[ ] args) { try { System.out.println("Welcome to Java"); } finally { System.out.println("The finally clause is executed"); } } } Question options: A) Welcome to Java followed by The finally clause is executed in the next line B) The finally clause is executed C) Welcome to Java D) None of the above

What is wrong in the following program? class Test { public static void main (String[ ] args) { try { System.out.println("Welcome to Java"); } } } Question options: A) Nothing is wrong. B) A method call that does not declare exceptions cannot be placed inside a try block. C) You cannot have a try block without a catch block or a finally block. D) You cannot have a try block without a catch block.

A method must declare to throw ________. Question options: A) Error B) unchecked exceptions C) checked exceptions D) RuntimeException

What exception type does the following program throw? public class Test { public static void main(String[ ] args) { int[ ] list = new int[5]; System.out.println(list[5]); } } Question options: A) ArrayIndexOutOfBoundsException B) No exception C) ArithmeticException D) StringIndexOutOfBoundsException E) ClassCastException

What exception type does the following program throw? public class Test { public static void main(String[ ] args) { System.out.println(1 / 0); } } Question options: A) StringIndexOutOfBoundsException B) ClassCastException C) ArithmeticException D) No exception E) ArrayIndexOutOfBoundsException