User Account

All Pages

Linux Calculator in Java, Basic Computer Science

Assignment Help:
Hello,
Could you create a linux calculator using very basic java code (not complex, because I am a novice java coder). It should be called into the terminal for interaction.
Thank You!!
Here is the assignment:

I have a problem performing simple arithmetic operations. I need it to
perform addition, subtraction, multiplication, division, and exponentiation.
The program should read operations from standard input and/or from a file. If it reads from a file then the file will contain all of the operations and data. If the program reads from standard input then the program is interactive. It should be able to do both.
The program is to be called xcalc. It is to be run from the UNIX command line prompt. A sample execution is below.

$calc file l file 2
$calc < file 1
$calc
It will read from the standard input and write to the standard output with the capability of i/o redirection. I also want the program to have the command line option capability to specify an output file
Scale -O outputfilename inputfilenamel
The numbers read are to be unsigned integers and the operations are to be in prefix form. The operations are addition, subtraction, multiplication, division, and exponentiation.

The control d character (the UNIX end of file character) will end the program if it is interactive. The following sample list of operations should help clear up any confusion.

"+11 11"

"-22 11"
"*22 2"
"/22 2"

"e 2 3"


The operation must be the very first character on the input line followed by 1 or more blanks. Any number of blanks can be before or after each operand. No blanks can be embedded into a number. Sample execution and operation follows that illustrate interactive mode
$xcalc
>>+ 11 22
>>11 + 22 =33
>>*22 2
>>22 * 2 = 44
>>

There is one arithmetic operation that can be used to implement all others. Determine which one and use it to implement all of the operations: "+, -, *, /, and e." If you cannot determine which operation is the "one magical all powerful operation" then try using addition "+".
You should check for invalid operations and for division by zero.
This program is to be developed using the principles discussed in class
Each operation should be implemented as a function. See the example below.

int add (int augend, int addend)
{
int sum;
sum = augend + addend;

return sum;
}
If you cannot figure out how to use addition "+" then use the : "+, -, *, /, and e." in a straight forward manner.
int multiply (int multiplicand, int multiplier)
{
int product;
product = multiplicand * multiplier;

return product;
}

Related Discussions:- Linux Calculator in Java

Write a detailed note on colour balance, Question 1 Write a long note on s...

Question 1 Write a long note on setting up a typical on-location News Interview Question  2 Write a long note on how to work with presenters Question 3 Write long notes

Pseudocode, Design a program that will read a file of sales records and pro...

Design a program that will read a file of sales records and produce a sales report. Each record in the file contains a customer’s ID, name, a sales amount, and a validated GST code

Computer Networking Scenario help, The project designs a school computer la...

The project designs a school computer lab with the necessary hardware and software components along with the IP address for different components. The computer lab consists of one I

Functions, difference between recursion and iteration

difference between recursion and iteration

Advantages and Disadvantages of Threads over Multi processes, Advantages:- ...

Advantages:- • Sharing Treads permit the sharing of a lot resources that cannot be shared in process, for instance, sharing code section, data section, Operating System resource

Outline the five main steps in the web design process, QUESTION (a) Out...

QUESTION (a) Outline the five main steps in the Web Design Process (b) Draw an annotated diagram explaining how data is transmitted to web servers during a standard form sub

Cost of computer, If you have to consider the installation of communication...

If you have to consider the installation of communications packages, the same questions have to be asked. (a) Does the software and the modem support the necessary transmission

Basic of simulation, Task 1 Study various types of systems and simulate a s...

Task 1 Study various types of systems and simulate a system of your own. Task 2 Study various models and enumerate the various steps for designing a corporate model

Perverse software, is u given is enough for us for this - what is pervere ...

is u given is enough for us for this - what is pervere software and explain in detail?

Respiratory system, 100 animals and their respiratory organs

100 animals and their respiratory organs

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd