Define a class named “Variable” that manages a variable name (string) and a description (string). It should not provide the default constructor. The class must at least provide the following methods: - toString() method that can return a string in the following format:    VAR() DESC() such as VAR(isSuccessful) DESC(successful flag indicator) - contains() that accepts a search string and it will return true if its variable name or the description contains that string (case-insensitive) and false otherwise. Show how this class being used to create objects and call all its methods and show how they work

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