Write a console calculator app in Java for your friend Chavvi called ChavviCalc to demonstrate that you can help her. Maybe one day you’ll turn your ChavviCalc into an iPhone app, make a million dollars, and help your friend too! Your friend Chavvi is allowed to type in anything. But, your app is resilient. So, it only accepts valid input.Your app also prints friendly and appropriate error messages when invalid information is typed in.Valid input is the single character menu commands like a, b, +, -, /, *, =, c, or q.For numerical values for A and B, valid input is an integer or floating-point value having maximum numerical precision (Links to an external site.) of floats in Java. In other words, students only need to use floats to store numerical values.Entering a non-numerical value for a number prints an error message.Dividing by 0 prints an error message.To enter commands or numbers, the user types in a command or number, and then presses enter.Menu CommandDescription of functionalityaAsks the user to enter a number for AbAsks the user to enter a number for B+A gets the value of A plus B. In other words, A = A + B-A gets the value of A minus B. In other words, A = A - B*A gets the value of A times B. In other words, A = A * B/A gets the value of A divided by B. In other words, A = A / B. Dividing by zero is invalid user input.cClears the values for both A and B. A gets the value 0 and B gets the value 0.In other words, A =0, B = 0. qQuits the app<None> InitializationUpon starting the calculator, the values of A and B are initially set to 0. Chavvi CalcA = 0.000B = 0.000aEnter a value for AbEnter a value for BAddSubtractMultiplyDivideClearQuitEnter a command: ||

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ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

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Write a console calculator app in Java for your friend Chavvi called ChavviCalc to demonstrate that you can help her. Maybe one day you’ll turn your ChavviCalc into an iPhone app, make a million dollars, and help your friend too!

Your friend Chavvi is allowed to type in anything. But, your app is resilient. So, it only accepts valid input.
Your app also prints friendly and appropriate error messages when invalid information is typed in.

Valid input is the single character menu commands like a, b, +, -, /, *, =, c, or q.
For numerical values for A and B, valid input is an integer or floating-point value having maximum numerical precision (Links to an external site.) of floats in Java. In other words, students only need to use floats to store numerical values.
Entering a non-numerical value for a number prints an error message.
Dividing by 0 prints an error message.
To enter commands or numbers, the user types in a command or number, and then presses enter.

Menu Command	Description of functionality
a	Asks the user to enter a number for A
b	Asks the user to enter a number for B
+	A gets the value of A plus B. In other words, A = A + B
-	A gets the value of A minus B. In other words, A = A - B
*	A gets the value of A times B. In other words, A = A * B
/	A gets the value of A divided by B. In other words, A = A / B. Dividing by zero is invalid user input.
c	Clears the values for both A and B. A gets the value 0 and B gets the value 0. In other words, A =0, B = 0.
q	Quits the app
<None> Initialization	Upon starting the calculator, the values of A and B are initially set to 0.