A method named isAnOperation that takes a character and returns true if the character  is one of the operations +, -, *, /, %, and false otherwise. The header of the method is as follows: public static boolean isAnOperation(char operation) 2. A method named getResult that takes two floating point numbers and a character: the  method returns a String that includes the two numbers, the operation, and the result.  The header of the method is as follows: public static String getResult(double num1, double num2, char operation) For example, if the two floating point numbers are 12.5 and 11.4, and the operation + is  passed to the method it must return the following String: 12.5 + 11.4 = 23.9

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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A method named isAnOperation that takes a character and returns true if the character 
is one of the operations +, -, *, /, %, and false otherwise.
The header of the method is as follows:
public static boolean isAnOperation(char operation)
2. A method named getResult that takes two floating point numbers and a character: the 
method returns a String that includes the two numbers, the operation, and the result. 
The header of the method is as follows:
public static String getResult(double num1, double num2, char operation)
For example, if the two floating point numbers are 12.5 and 11.4, and the operation + is 
passed to the method it must return the following String:
12.5 + 11.4 = 23.9
3. In your main method:
a. Read two floating point numbers from the user. You must prompt the user to enter 
the numbers with appropriate messages.
b. Read the operation to be performed between the two numbers from the user. You 
must prompt the user to enter the operation with an appropriate message. You must 
invoke the isAnOperation method to check that the operation is valid. If it’s not valid, 
your program must keep on prompting the user to enter an operation from (+,-,*,/%)
until a valid operation is entered.
c. Invoke the getResult method by passing the entered numbers and operation and print
the returned String to the console. 

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