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

Meaning of primary data, Problem 1 Research designs have a critical and...

Problem 1 Research designs have a critical and directive role to play in the research process. Explain the meaning of research design. Describe the various types of research de

Basic concepts of Assembler language , Information Units In order for the P...

Information Units In order for the PC to process information, it is essential that this information be in unique cells called registers. The registers are sets of 8 or 16 flip-flop

Necessary nurses records, Necessary Nurses Records The software shoul...

Necessary Nurses Records The software should generate all registers/reports in detail summary for various permutations and combinations of options. A powerful SQL (Structure

What is a Process and process mangemen in operating system? , A process is ...

A process is a chronological program in execution. The constituents of a process are the following: • The object program to be executed ( described the program text in UNIX) • Th

Internetworking, You have been approached by Company XYZ to design and depl...

You have been approached by Company XYZ to design and deploy a new network that will span three cities in Queensland: Brisbane (12 users), Gold Coast (8 users), and Cairns (6 users

Necessary nurses records, Necessary Nurses Records The software shoul...

Necessary Nurses Records The software should generate all registers/reports in detail summary for various permutations and combinations of options. A powerful SQL (Structure

Oop, evolution of oop

evolution of oop

Database design, Build a database application for a sports league. Assume y...

Build a database application for a sports league. Assume your application is to keep track of teams and equipment that is checked out to teams. Explain the steps that is needed and

OPERATING SYSEMS, Design an ER diagram for an IT training group. The compan...

Design an ER diagram for an IT training group. The company has 12 instructors and can handle upto 100 trainees for each training section. The company offers 5 advanced technology c

Image processing, Image Processing: This technology is quite advanced ...

Image Processing: This technology is quite advanced and devices are now available for routine scanning and storage of printed pages, graphics, etc., which can then be retrieve

Write Your Message!

Captcha
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!

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