You must follow the UML below as the basis to create a calculator using Java OOP.
The requirement of the calculator
1. Accept input from
a) Standard input (loop for waiting next input after printing the computation result)
b) Text file (file name: input. txt with multiple lines of arithmetic expression)
2. The input string is an arithmetic expression including parentheses () and only has one line
a) The operator and operand may not have a space character as the separator
b) For example, (10.1+200 -4.5x5.5)/(2-3x5)
c) If the input string has syntax error, terminate the program and tell what is wrong.
3. The operand can be an integer or a floating-point value and also negative number.
4. The operators include +, ,x,/ and ! (factorial)
5. If the output is not an integer, round to 4 decimal places.
a) if using command line or Eclipse console
i. Input: (-20-10.1+200 -4.5x5.5)/(2-3 x5)
ii. Output: = -11.1654
b) if using a text file (input. txt) as input, you should create an output file (output. txt)
i. Input: (-20-10.1+200 -4.5x 5.5)/(2-3x5)
ii. In output file: Input: (-20-10.1+200 -4.5x 5.5)/(2-3 x5)= -11.1654
iii. There are more than 1 input arithmetic expression in the file.

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?

it is a requirement to graduate high school where i live

svsgfsgdgcsgshsjsghsjsj

solution:

this situation is called an ip conflict.

data from a server is sent in small bits called packets. in an ip conflict, some packets will end up in one computer while some other packets will end up in another computer.

so…overall none of the computers get the data as the original message or picture being sent by the server cannot be retrieved with only half the packets. so it will show up as an error.

thus the final answer is d.