QUESTION 49
The parent class of Error is ____.
| a. |
Object |
|
| b. |
Exception |
|
| c. |
RuntimeException |
|
| d. |
RuntimeError |
Answer)
a) Object
It is the throwable class which is defined to be a superclass for any error or exception while in Java, it is only the object which would be the instance of the class that are being thrown by JVM.
While as in the option we don't have the throwable class hence the super class of Throwable is object hence option A) is the answer.
An object class is considered as the root of the hierarchy of the class
Please mark a like if you find the answer useful.
QUESTION 49 The parent class of Error is ____. a. Object b. Exception c. RuntimeException d....
Question 1 (5 points) Question 1 Unsaved What is displayed on the console when running the following program? public class Quiz2B { 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 1 options: The program displays Welcome to Java two times. The program displays Welcome to...
2. 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. a. RuntimeException b. Exception c. Error d. Throwable e. NumberFormatException
What kind of error is it when your program has a syntax error? Exception Logic error Run-time error Compile-time error ----------------------- Consider the following code snippet: public class Employee { private String empID; private boolean hourly; public Employee(String employeeID, boolean isHourly) { . . . } } Which of the following statements can be used to create an object of type Employee? Employee anAuto = new Employee("10548", true); Employee anAuto = new Employee("10548", "true"); Employee anAuto = new Employee(10548, true);
public class Exercise{ public static void main(String [] arg){ A a=new D(); B b=new D(); C c=new D(); c=a; c=b; //A myA=b;//must be a type error //The next assertion verifies that the former line would not typecheck assert !((Object)new B(){} instanceof A); //B myB=a;//must be a type error //The next assertion verifies that the former line would not typecheck assert !((Object)new A(){} instanceof B); } } [???] //what should I enter in place of the question marks to get this...
Exception handling All Exceptions that can be thrown must descend from this Java class: The getMessage( ) method is inherited from this class? What are the two broad catagories of Exceptions in Java? If an Exception is not a checked exception it must extend what class? What is the difference between a checked Exception and an unchecked Exception? What are the two options a programmer has when writing code that may cause a checked Exception to be thrown? Can a...
What are the differences between traditional error-handling methods and object-oriented exception-handling methods? Describe situations in which each might be appropriate.
what is the output of running class Launcher? class parent { public Parent{ System.out.println( "The default constructor of Parent is invoked"); } } class Child extends Parent { public Child(); System.out.println( "The default constructor of Child is invoked"); } } public class Launcher { public static void main(String[] args) { Child c = new Child(); } a. no output since the main method does not have System.out.println() b."The default constructor of Child is invoked" c. "The default constructor of Parent...
C++ Your assignment this week is to make your fractionType class safe by using exception handling. Use exceptions so that your program handles the exceptions division by zero and invalid input. · An example of invalid input would be entering a fraction such as 7 / 0 or 6 / a · An example of division by zero would be: 1 / 2 / 0 / 3 Use a custom Exception class called fractionException. The class must inherit from exception...
Use object-oriented design to design a parent class called Book that will receive the ISBN, author, title and price of a book, and select and print records for al books with a price of more than $50.00. Design a child class called TextBook that will use the existing methods of its parent class and receive an extra data field called grade that can be a number from 0 to 12. This class is to select and print records of all...
11. This method may be called from any exception object, and it shows the chain of meth- ods that were called when the exception was thrown. a. printInvocationList b. printCallStack c. printStackTrace d. printCallList