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

Conditional statement, Conditional statement: An If statement is comp...

Conditional statement: An If statement is composed of three parts. The first part should be keyword w.r.t language to convey to the computer that it is if statement. And a Bo

C LANGUAGE, WHAT DO MEAN BY ALGORITHM,HOW CAN ALGORITHM HELP TO WRITE BETTE...

WHAT DO MEAN BY ALGORITHM,HOW CAN ALGORITHM HELP TO WRITE BETTER COMPUTER PROGRAM ,WRITE AN ALGORITHM IN COMPUTER INTEREST

Distinguish between the following javascript built-in method, QUESTION ...

QUESTION (a) Draw an annotated diagram explaining how data is transmitted to web servers during a standard form submit event. (b) What in your opinion makes a bad web site?

Java programming, Write a program that lets the user play the game Rock, Pa...

Write a program that lets the user play the game Rock, Paper, Scissors against the computer. The program should work as follows: ? When the program begins, the results of the prev

Liquid crystal displays, Liquid Crystal Displays (LCD): First introduc...

Liquid Crystal Displays (LCD): First introduced in watches and clocks in the1970's, LCDs are now used to display images in monitors. A newer technology in computer screens is

D, #questionWrite a program to find the area under the curve y = f(x) betwe...

#questionWrite a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two poi

Explain the different methods of encryption technique, Problem When a d...

Problem When a data is sent across the network it is encrypted and arranged in a way that even if there is a diversion in the flow of data should not leak the data. At the rece

Twisted pairs, Twisted Pairs: Twisted pairs are familiar to all of us ...

Twisted Pairs: Twisted pairs are familiar to all of us as the copper wire telephone lines. These are of low frequency, and support a limited bandwidth (one voice channel) but

Write a long note on computer languages, Question 1 Explain the importan...

Question 1 Explain the importance of graphics in multimedia. What are few of the tips to keep in mind while using graphics for the web? Question 2 Write a long note on co

Desk top publishing program, Desk Top Publishing Program: Desktop publ...

Desk Top Publishing Program: Desktop publishing programs contain many of the features of word processing software, but .go even further in the ability to layout the format of

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