Write a full class that represents a Phone, described by a name, price, and then whether the phone comes enabled with Bluetooth. The default value is that most phones come enabled. Include instance data, one or more constructors, getters and setters, a toString, and an equals method. Required  validation for the variables Implement the Comparable interface. Order phones based on name and then price. Show make the driver in a different class to test the methods using user-input

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Math class and its different methods

Java math class consists of arithmetic math methods that performs basic numeric operations such as finding the maximum or minimum of two values, rounding values, logarithmic functions, square root, and trigonometric functions, etc. The Math library functions can be accessed using the header Java.lang.Math. These math methods under Java math class are for our convenience.