Problem

Listing, Calculator.java, is a simple commandline calculator. Note that the program termin...

Listing, Calculator.java, is a simple commandline calculator. Note that the program terminates if any operand is nonnumeric. Write a program with an exception handler that deals with nonnumeric operands; then write another program without using an exception handler to achieve the same objective. Your program should display a message that informs the user of the wrong operand type before exiting (see Figure).

Listing

Figure

The program performs arithmetic operations and detects input errors.

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Solutions For Problems in Chapter 12

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