This project provides a calculator application with two modes of operation:
-
Console Application Mode:
- Users interact with the calculator through the console.
- Supports basic arithmetic operations with operator precedence (
* / + -). - Handles expressions like
"2+2*3"correctly with operator precedence. - Throws exceptions for division by zero (
"2/0").
-
File Processing Mode:
- Reads input data from a file line by line.
- Supports calculations with parentheses for precedence control.
- Each line from the input file is evaluated, and results are written to an output file.
- Outputs calculations and handles invalid expressions gracefully.
-
Console Application Mode:
- Allows users to input expressions directly in the console.
- Supports basic arithmetic operations (
+ - * /). - Handles operator precedence (
*and/have higher precedence over+and-). - Throws exceptions for division by zero.
-
File Processing Mode:
- Reads expressions from an input file.
- Evaluates expressions that may include parentheses for grouping.
- Writes the evaluated results to an output file.
- Handles and reports errors for invalid expressions.
Example 1: Console Application Mode
Input:
2+2*3
Output:
8
Input:
2/0
Output:
Exception: Divide by zero
Example 2: File Processing Mode
Input file (input.txt):
1+2*(3+2)
1+x+4
2+15/3+4*2
Output file (output.txt):
1+2*(3+2) = 11
1+x+4 = Exception. Wrong input.
2+15/3+4*2 = 15```