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erastova [34]
2 years ago
8

Java uses interfaces to provide the benefits of multiple inheritance. A superclass object is a subclass object. A subclass is of

ten larger than its superclass. The class following the extends keyword in a class declaration is the direct superclass of the class being declared.
Computers and Technology
1 answer:
WITCHER [35]2 years ago
4 0

COMPLETE QUESTION

Which of the following is false?

a. A subclass is often larger than its super class.

b. A super class is object is a subclass object.

c. The class following the extends keyword in a class declaration is that direct super class of the class being declared.

d. Java uses interfaces to provide the benefits of multiple inheritance

Answer:

B) A super class is object is a subclass object.

Explanation:

In object oriented programming, the concept of inheritance is greatly utilized, this refers to deriving a class from another class. The derived class is the sub-class and it is derived from its super class, as a matter of fact in Java programming language, all classes are derived from some other class. Objects are made from classes with their state (fields) and behavior (methods) since objects are made from classes, the objects of the super class will not be the same as that of the subclass.

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Which one of the following is a correct declaration for a method named passAList that has as arguments an array list myList of s
alekssr [168]

Answer:

"public static void passAList(ArrayList<Integer> myList, int[] intArr)", is the correct answer for the above question.

Explanation:

Missing information :

  • The option is missing but the question states "choose from the following". The correct defining syntax is defined above.

Detailed Explantion :

  • The above question asked about syntax which takes the value of list and array as an argument.
  • It is already defined in the above syntax.
  • And the value is passed by the user at the time of function call.
  • The array list is defined by the help of the ArrayList class and the array is defined by the help of the "[]" symbol.

3 0
2 years ago
Frank works for an organization that wishes to install a software program on a single server with multiple users connected. Whic
Helen [10]
The best answer to this question should be (A) Cloud Computing.

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7 0
2 years ago
In object oriented programming, what is another name for the "attributes" of an object?
Ket [755]
I believe the word you're looking for is properties.
7 0
1 year ago
Consider the following relation:CAR_SALE(Car#, Date_sold, Salesperson#, Commission%, Discount_amt)Assume that a car may be sold
GalinKa [24]

Answer:

The answer to this question can be given as:

Normalization:

Normalization usually includes the division of a table into two or more tables as well as defining a relation between the table. It is also used to check the quality of the database design. In the normalization, we use three-level that are 1NF, 2NF, 3NF.

First Normal Form (1NF):

In the 1NF each table contains unique data. for example employee id.  

Second Normal Form (2NF):

In the 2NF form, every field in a table that is not a determiner of another field's contents must itself be a component of the table's other fields.

Third Normal Form (3NF):

In the 3NF form, no duplication of information is allowed.

Explanation:

The explanation of the question can be given as:

  • Since all attribute values are single atomic, the given relation CAR_SALE is in 1NF.  
  • Salesperson# → commission% …Given  Thus, it is not completely dependent on the primary key {Car#, Salesperson#}. Hence, it is not in 2 NF.                                                                                                        

The 2 NF decomposition:

        CAR_SALE_1(Car#, Salesperson#, Date_sold, Discount_amt)

         CAR_SALE_2(Salesperson#, Commission%)

  • The relationship in question is not in 3NF because the nature of a transitive dependence occurs
  • Discount_amt → Date_sold → (Car#, Salesperson#) . Thus, Date_sold is neither the key itself nor the Discount amt sub-set is a prime attribute.  

The 3 NF decomposition :

        CAR_SALES_1A(Car#, Salesperson#, Date_sold)

        CAR_SALES_1B(Date_sold, Discount_amt)

        CAR_SALE_3(Salesperson#, Commission%)

5 0
1 year ago
Spark is electrical discharge in air, while air is mix of variety of gases what particles conduct electricity in gas
erastova [34]

Answer:

Mercury, rontgen rays, etc.

Explanation:

There are lots of answers to this question, hope these two help.

6 0
1 year ago
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