Computers and Technology, 21.02.2020 20:36 LordBooming
In this assignment, you will make another calculator. This one will work on arrays rather
than single values. Like the basic calculator from the previous assignments, the array
calculator should allow users to add, subtract, multiply and divide the corresponding
values in two arrays. It should also allow users to generate a random array. Finally,
there is a special value that can be computed for two arrays called the dot product that
your calculator should also be able to compute. You can find the definition of the
algebraic dot product of two arrays by googling (Wikipedia is a good choice). Briefly, the
dot product of two arrays is the sum of the product of the corresponding values in the
arrays.
For example, the dot product of [1, 5, 8, 2] and [2, 4, 1, 3] is:
(1 * 2) + (5 * 4) + (8 * 1) + (2 * 3)
which is 36.
Your array should have the same methods as the calculator from Assignment 4, plus a
method to compute the dot product. These methods should deal with double arrays
rather than plain doubles, however. Here is a list of the method signatures:
public static int getMenuOption()
public static double[] getOperand(String prompt, int size);
public static double getOperand(String prompt);
public static double[] add(double[] operand1, double[] operand2)
public static double[] subtract(double[] operand1, double[] operand2)
public static double[] multiply(double[] operand1, double[] operand2)
public static double[] divide(double[] operand1, double[] operand2)
public static double[] random(double lowerLimit, double upperLimit, int size)
public static double dotProduct(double[] operand1, double[] operand2)
You will need two versions of the getOperand method. This is an example of method
overloading. The first version will prompt the user for enough values to fill an array and
return the array. This will be used to get the operands for the add, subtract, multiply,
divide, and dotProduct method. The other version does the same thing as in the Fourth
Assignment – Calculator with Methods – it displays a prompt and reads and returns a
double value. This is needed to get the inputs for the random method. The random
method will need one additional parameter – the size of the random array that should be
generated. Note that the dotProduct method only needs to return a single double value
rather than an array.
Here is an example run of the program:
Menu
1. Add
2. Subtract
3. Multiply
4. Divide
5. Dot product
6. Generate random array
7. Quit
What would you like to do? 1
How many values are in the arrays? 3
Enter the values in the first array, separated by spaces:
2 4 6
Enter the values in the second array, separated by spaces:
1 3 5
The result is [3.0, 7.0, 11.0]
Answers: 3
Computers and Technology, 22.06.2019 10:40, almaga1979orfvwo
5. illustrate how fine-line inventory classification can be used with product and market segments. what are the benefits and considerations when classifying inventory by product, market, and product/market?
Answers: 2
Computers and Technology, 23.06.2019 13:00, torresnoemi899
Which of the following statements is false? a. a class can directly inherit from class object. b. if the class you're inheriting from declares instance variables as private, the inherited class can access those instance variables directly. c. a class's instance variables are normally declared private to enforce good software engineering. d. it's often much more efficient to create a class by inheriting from a similar class than to create the class by writing every line of code the new class requires.
Answers: 3
Computers and Technology, 23.06.2019 22:40, azariah7
22. sata3 allows for data transfer rates of 600 mb/s. explain why you would likely not be able to copy data from one hard drive to another at anywhere close to this speed. also, what could be upgraded on the computer to achieve transfer speeds closer to 600 mb/s
Answers: 1
Computers and Technology, 24.06.2019 23:00, Jennifer312332
Hypertension occurs when blood pressure is too high.
Answers: 1
In this assignment, you will make another calculator. This one will work on arrays rather
English, 28.09.2020 23:01
Mathematics, 28.09.2020 23:01
Spanish, 28.09.2020 23:01
History, 28.09.2020 23:01
Mathematics, 28.09.2020 23:01