Question: Write the bin2Dec(String binaryString) method to convert a binary string into a decimal number. Implement the bin- 2Dec method to throw a NumberFormatException if the

Write the bin2Dec(String binaryString) method to convert a binary string into a decimal number. Implement the bin- 2Dec method to throw a NumberFormatException if the string is not a binary string. Write a test program that prompts the user to enter a binary number as a string and displays its decimal equivalent. If the method throws an exception, display “Not a binary number”.

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