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

A* search-artificial intelligence, A* Search-Artificial intelligence:  ...

A* Search-Artificial intelligence:   A* search combines the best parts of uniform cost search that  called the fact that it's optimal and complete, and the best parts of gre

Heuristic search strategies-artificial intelligence, Heuristic Search Strat...

Heuristic Search Strategies-Artificial intelligence In general speaking, a heuristic search is one which utilizes a rule of thumb to improve an agent's performance in solving p

Super computers, Super Computers: The specialised demands and requirem...

Super Computers: The specialised demands and requirements of science, industry and military have led to the creation of powerful super computers. For numerically intensive com

Accessing other computers, Accessing Other Computers The advanced netw...

Accessing Other Computers The advanced networking features of Windows combined with the easy to use user interface make the task of sharing information with other computers/us

Define procedure of Building Assembler programs, In order to be able to mak...

In order to be able to make a program, quite a lot of tools are needed: Earliest an editor is used to create the source program. Next a compiler, which is nothing more than a progr

IF.ELSE Statement of python , Conditional constructs are used to integrate ...

Conditional constructs are used to integrate decision making into programs. The outcome of this decision making determines the series in which a program will execute instructions.

Word processing (wp), Word Processing (WP): Word Processing is one of ...

Word Processing (WP): Word Processing is one of the most widespread application software types in use today. Developed as a successor to primitive text editors that were popul

Storage capacity and cost per bit of storage, Storage capacity and Cost per...

Storage capacity and Cost per bit of storage: Storage capacit y:  It is the amount of data that can be stored in the storage unit. A large capacity is preferred.  Cost pe

What is Assembly Language?, Assembly language is fundamentally the local la...

Assembly language is fundamentally the local language of your computer. In principle the processor of your machine understands machine code (consisting of ones and zeroes). But wit

Breadth first search - artificial intelligence, Breadth First Search - arti...

Breadth First Search - artificial intelligence: Given a set of operators o1, ..., on in a breadth primary search, every time a new state s is reached, an action for every  oper

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