What all is true about Interfaces in Java? An interface contains function definitions (T/F) An interface...
What all is true about Interfaces in Java?
An interface contains function definitions
(T/F)
An interface contains function prototypes
(T/F)
A class extends an interface (T/F)
A class implements an interface (T/F)
An object reference can be of type interface
(T/F)
It is possible to make an object that's purely an interface type
(T/F)
Homework Answers
An interface contains function definitions F An interface contains function prototypes T A class extends an interface F A class implements an interface T An object reference can be of type interface F It is possible to make an object that's purely an interface type F
Add Answer to:
What all is true about Interfaces in Java?
An interface contains function definitions
(T/F)
An interface...
java 4. Java allows for the use of generic typing to do away with all type...
java 4. Java allows for the use of generic typing to do away with all type checking of parameters to methods. TRUE OR FALSE ? 5 How many interfaces can a class implement? 6.When a programmer writes a class definition to implement an interface, he/she must write the method body for at least one of the method headings specified in the interface TRUE OR FALSE? 7. Declaring a formal parameter's type as T is the same thing as declaring the...
Please use Java only: Background: Java contains several different types of interfaces used to organize collections...
Please use Java only: Background: Java contains several different types of interfaces used to organize collections of items. You may already be familiar with the List interface, which is implemented by classes such as the ArrayList. A List represents a collection of elements from which elements can be stored or retreived, in which elements are ordered and can be retrieved by index. A List extends from a Collection, which represents a collection of elements but which may or may not...
Question 60.1 pts Which of the following is true about a concrete class? A concrete class...
Question 60.1 pts Which of the following is true about a concrete class? A concrete class may be extended. A concrete class may be instantiated. A concrete may NOT contain abstract methods. All of the above. None of the above. Flag this Question Question 70.1 pts Which of the following is true? A class extends exactly one other class and may implement any number of interfaces. A class may extend at most one concrete class, may extend any number of...
Java program. Code the following interfaces, implement them, and use the interface as a parameter, respectively:...
Java program. Code the following interfaces, implement them, and use the interface as a parameter, respectively: a. An interface called Printable with a void print() method. b. An interface called EmployeeType with FACULTY and CLASSIFIED integer data. The value of FACULTY is 1 and CLASSIFIED is 2. a. A class called Employee to implement the two interfaces. Its constructor will initialize three instance data as name, employeeType, and salary. Implementation of method print() will display name, employeeType, and salary; salary...
Abstract classes and Interfaces problems 10. Explain one similarity and one difference between ab...
Abstract classes and Interfaces problems 10. Explain one similarity and one difference between abstract classes and interfaces. 11. Consider the following declarations. public interface Shape{ int someFunction(Shape other); //other functions not shown } public class Square implements Shape {/*implementation not shown*/} Which of the following function headings of someFunction must be added to the declaration of the Square class such that it will satisfy the Shape interface? public int someFunction (Shape other) public int someFunction (Square other) public boolean someFunction(Object...
Abstract classes and Interfaces problems 10. Explain one similarity and one difference between abstract classes and...
Abstract classes and Interfaces problems 10. Explain one similarity and one difference between abstract classes and interfaces. 11. Consider the following declarations. public interface Shape{ int someFunction(Shape other); //other functions not shown } public class Square implements Shape {/*implementation not shown*/} Which of the following function headings of someFunction must be added to the declaration of the Square class such that it will satisfy the Shape interface? public int someFunction (Shape other) public int someFunction (Square other) public boolean someFunction(Object...
Interfaces 1. What is inside an interface definition? What does a class do to an interface...
Interfaces 1. What is inside an interface definition? What does a class do to an interface and what keyword is involved? How does a class do this to an interface (what should we find in the class)? Can an interface have a generic parameter? How do you instantiate an interface as an object? What methods can’t you use on an interface type? Abstract Data Types 2. What does an ADT define? Does an ADT specify programming language and/or data structures...
In java, create class BNode(T), which implements the interface TreeNode(T) interface methods: void setRight(TreeNode(T) right) -...
In java, create class BNode(T), which implements the interface TreeNode(T) interface methods: void setRight(TreeNode(T) right) - sets right side of node, where right is the node to the right of this node void setRight(TreeNode(T) left) - sets left side of node, where left is the node to the left of this node TreeNode getRight() - gets the right node TreeNode getLeft() - gets the left node T getData() - gets the data within the node THEN, create class BT(E), which...
questions based from above handout CUNY/CSI CODE LISTING 1 public Interface Calculator f public double getCurrentValue); public class Simplecalculator implements Calculator ) public Class Finan...
questions based from above handout
CUNY/CSI CODE LISTING 1 public Interface Calculator f public double getCurrentValue); public class Simplecalculator implements Calculator ) public Class FinancialCalculator extends Simplecalculator public class ScientificCalculator extends SimpleCalculator [UML DIAGRAM) FIGURE Tredabie FinancialSecority +gell ost Trada Tme): Date Debt Asset Bond Stock ETF ComvertableBond (5 x 4:20 points) 17.Given the detail shown in the UML Class diagram, would the Java Compiler accept the following statement as valid? Tradable t-new Bond ) For Questions 18-21, provide the...
Status Topic Interfaces Description Video Scene Problem Consider a video scene in which we want to...
Status Topic Interfaces Description Video Scene Problem Consider a video scene in which we want to display several different types (classes) of objects. Let's say, we want to display three objects of type Deer, two objects of type Tree and one object of type Hill. Each of them contains a method called display. We would like to store their object references in a single array and then call their method display one by one in a loop. However, in Java,...
questions based from above handout
CUNY/CSI CODE LISTING 1 public Interface Calculator f public double getCurrentValue); public class Simplecalculator implements Calculator ) public Class FinancialCalculator extends Simplecalculator public class ScientificCalculator extends SimpleCalculator [UML DIAGRAM) FIGURE Tredabie FinancialSecority +gell ost Trada Tme): Date Debt Asset Bond Stock ETF ComvertableBond (5 x 4:20 points) 17.Given the detail shown in the UML Class diagram, would the Java Compiler accept the following statement as valid? Tradable t-new Bond ) For Questions 18-21, provide the...
Most questions answered within 3 hours.
-
Write a program that first reads an integer for the array size,
then reads numbers into...
asked 4 minutes ago -
Which of the following is not one of the steps for applying
activity-based costing in a...
asked 3 minutes ago -
in C++
Problem:
Subtract 4 to any element's value that is greater than
maxVal.
Ex: If...
asked 21 minutes ago -
We assume that the ages of university students are
normally distributed. The average age of UAGM...
asked 16 minutes ago -
Use the ∆?? ° information provided to calculate ∆?????????
IF7 (g) + I2 (g) IF5 (g)...
asked 44 minutes ago -
Explain why case-mix analysis should be performed by
health care facilities. List other types of analysis...
asked 1 hour ago -
1.
Today Tomorrow
Price of Coke 1.90 2.10
Quantity of Pepsi 297 303
a. Write down...
asked 3 hours ago -
Fluorine-20 has a half-life of 11.0 s. If a sample initially
contains 36.0 μg of this...
asked 3 hours ago -
How many fissions take place per second in a 190-MW reactor?
Assume 200 MeV is released...
asked 4 hours ago -
IQ scores are normally distributed with a mean of 100 and a
standard deviation of 15....
asked 4 hours ago -
You are to assess the biomechanics of a male’s arm using his
bicep to hold a...
asked 6 hours ago -
What is the maximum number of grams of N-acetyl-p-toluidine can
be prepared from 70. milliliters of...
asked 7 hours ago