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boyakko [2]
3 years ago
13

Analyze the following code. Number[] numberArray = new Integer[2]; numberArray[0] = new Double(1.5); Question 9 options: A) Sinc

e each element of numberArray is of the Number type, you cannot assign an Integer object to it. B) At runtime, new Integer[2] is assigned to numberArray. This makes each element of numberArray an Integer object. So you cannot assign a Double object to it. C) You cannot use Number as a data type since it is an abstract class. D) Since each element of numberArray is of the Number type, you cannot assign a Double object to it.
Computers and Technology
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

B) At runtime, new Integer[2] is assigned to numberArray. This makes each element of numberArray an Integer object. So you cannot assign a Double object to it.

Explanation:

The Number class in Java is the superclass for the numbers. Once it is set to the Integer object, the values in <u>numberArray</u> must be all integers, we know that arrays can hold one type of value in Java. Assigning a double value is not allowed in this situation.

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Here is a Test Code segment:
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Here's the best answer I can give you, but bear with me.
The second option is incorrect because a class method must have a class identifier not an object identifier. What makes myObject an object identifier is the fact that it was created as an instance of the class MyClass in the constructor in line 5 (MyClass myObject= new MyClass(12.4,20);
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zhannawk [14.2K]
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You are working on a ticketing system. A ticket costs $10. The office is running a discount campaign: each group of 5 people is
cupoosta [38]

Answer:

Explanation:

The following program is written in Java. It takes 5 inputs of int values for the ages of each member in the group. Then it loops through all of the ages and chooses the youngest age. Finally, it applies that age as a discount to the final price which would be $50, outputting the final discounted price. The output for the test case provided can be seen in the attached picture below in red.

import java.util.Scanner;

class Brainly

{

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       int[] person = new int[5];

       System.out.println("Enter age of individual 1: ");

       person[0] = in.nextInt();

       System.out.println("Enter age of individual 2: ");

       person[1] = in.nextInt();

       System.out.println("Enter age of individual 3: ");

       person[2] = in.nextInt();

       System.out.println("Enter age of individual 4: ");

       person[3] = in.nextInt();

       System.out.println("Enter age of individual 5: ");

       person[4] = in.nextInt();

       int youngest = person[0];

       for (int x = 0; x < person.length; x++) {

           if (person[x] < youngest) {

               youngest = person[x];

           }

       }

       double discount = 1 - (((double)youngest) / 100);

       double output = 50 * discount;

       System.out.println("Total Price: " + output + " the youngest is " + youngest);

   }

}

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3 years ago
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