Description: Desk Calculator
This project requires you to write a program that imitates a simple desk calculator. Your calculator must be able to accept an infix expression which at least includes (, ),+,-,*, /, , and ^ (exponentiation operator, a^b = ab ). If the expression is legal, output its value, else output an error message.
Input Specification:
Your program must read test cases a file “input.txt”. In the file there are several test cases, each occupies one line that contains an infix expression. Proceed until the end of the file.
Output Specification:
For each test case, output to a file “output.txt” in one line the value of that expression (accurate up to two decimal places), or an error message “ERROR IN INFIX NOTATION”.
Sample Input:
4.99+5.99+6.99*1.06
(3*5*(4+8) 2)
2^2^3
1+2(
2/0
(2-4)^3.1
2.5 2
2 2.5
Sample Output:
18.39
0.00
256.00
ERROR IN INFIX NOTATION
ERROR IN INFIX NOTATION
ERROR IN INFIX NOTATION
ERROR IN INFIX NOTATION
ERROR IN INFIX NO
To Search:
File list (Check if you may need any files):
Project1\.classpath
........\.project
........\bin\Calculator.class
........\...\output.class
........\...\Test.class
........\input.txt
........\output.txt
........\src\Calculator.java
........\...\output.java
........\...\Test.java
........\bin
........\src
Project1
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