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

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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