Customer Service Chat
Get quote & make Payment
Linux Calculator in Java, Basic Computer Science
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.
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
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.
"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
>>+ 11 22
>>11 + 22 =33
>>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)
sum = augend + addend;
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)
product = multiplicand * multiplier;
Posted Date: 4/11/2012 8:22:03 PM | Location : United States
Ask an Expert
Linux Calculator in Java, Assignment Help, Ask Question on Linux Calculator in Java, Get Answer, Expert's Help, Linux Calculator in Java Discussions
Write discussion on Linux Calculator in Java
Your posts are moderated
Write your message here..
Computer in education, What is CAI ? Explain it''s pitfalls.
What is CAI ? Explain it''s pitfalls.
Basic parts of a computers, The basic parts of a computers are shown in Fig...
The basic parts of a computers are shown in Figure. Input devices such as a keyboard, mouse or scanner are used to enter input (data and/or instructions), directly
Algorithim, product of two numbers
product of two numbers
Assembly, Design and develop a program to calculate the sum of an integer n...
Design and develop a program to calculate the sum of an integer number using MIPS assembly language.
What is deadlock ?Differentiate two types of resources ?, • A set of proce...
• A set of process is in a deadlock state if each process in the group is waiting for an event that can be caused by only another process in the set. In other words, each member of
Frequency and bandwidth, Frequency and Bandwidth: Let us try to unders...
Frequency and Bandwidth: Let us try to understand a little about how information is transmitted. The information may be in the form of sound (human voice, music) or it may be
Computer processing, Computer Processing: Most of the earliest compute...
Computer Processing: Most of the earliest computer memories have been based on physical elements which can exist in just one of the two states (on or off): such an element cor
Working of web browser, Working of web Browser: Internet is character...
Working of web Browser: Internet is characterized by the Client Server Computing that consists of three basic components: The Web client which may be the web browser;
Problem - programming language, Problem - programming language: A Prob...
Problem - programming language: A Problem is to carry out a particular task. For solving the problem, some input has to be given to the system. The system will process or mani
Algorithm implementation, Implementing the -Crochemore-Perrin algorithm Th...
Implementing the -Crochemore-Perrin algorithm The software must be functional, code must be clear and including comments and it must have a nice and decent user interface
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.