Some Java help please
1. ) Which of the following statements is not true?
A. All the methods in an interface are abstract
B. A class can implement just the methods of an interface it needs
C. An interface can contain static constants
D. C class can implement multiple interfaces.
2. )
Which method is an example of overriding the method that follows?
public int parseNumber(String numberString){...}
A. public double parseNumber(String numberString){...}
B. public int parseNumber(String num){...}
1)
B. A class can implement just the methods of an interface it needs
2)
B. public int parseNumber(String num){...}

Some Java help please 1. ) Which of the following statements is not true? A. All...
1. (TCO 7) Which of the following statements are true? (Points : 5) Interfaces contain one and only one implemented method, a constructor. Interfaces are defined inside an abstract class. All methods defined in an interface must be implemented when used by another class. A true object-oriented design must contain as least one interface. Question 2. 2. (TCO 7) In an object-oriented program, methods with no implementation might be found in an _____ and/or a(n) ______....
Java:
Create the skeleton.
Create a new file called ‘BasicJava4.java’
Create a class in the file with the appropriate name.
public class BasicJava4 {
Add four methods to the class that return a default value.
public static boolean isAlphabetic(char aChar)
public static int round(double num)
public static boolean useSameChars(String str1, String
str2)
public static int reverse(int num)
Implement the methods.
public static boolean isAlphabetic(char aChar):
Returns true if the argument is an alphabetic character, return
false otherwise. Do NOT use...
Can someone please help with this in JAVA? Write one application program by using the following requirements: 1) Exception handling 2) Inheritance a) At least one superclass or abstract superclass: this class needs to have data members, accessor, mutator, and toString methods b) At least one subclass: this class also needs to have data members, accessor, mutator, and toString methods c) At least one interface: this interface needs to have at least two abstract methods d) At least one method...
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 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...
Java -Create an interface and implement it In the murach.db package, create an interface named IProductDB. This interface should specify this abstract method: public abstract Product get(String productCode); Modify the ProductDB class so it implements the IProductDB interface. Write the code for the new ‘get’ method. Then remove the getProductByCode method. In the Main class, modify the code so it works with the new ProductDB class. This code should create an instance of the IProductDB interface like this: IProductDB db...
Which of the following is true about interfaces: An interface can have only non abstract methods. All methods in an interface must be abstract. A class can only implement one interface. None of the items listed. Can not contain constants but can have variables. What is the rule for a super reference in a constructor? It must be in the parent class' constructor. You cannot use super in a constructor. It must be the last line of the constructor in...
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Can the folllowing be done in Java, can code for all classes and code for the interface be shown please. Modify the GeometricObject class to implement the Comparable interface and define a static max method in the GeometriObject class for finding the larger of two GeometricObject objects. Write a test program that uses the max method to find the larger of two circles, the larger of two rectangles. The GeometricObject class is provided below: public abstract class GeometricObject { private...