Make a class named 'MyStringTest! Put it in a package named 'stringtester' and have it contain a main() method. Write code that will test all the methods of the StringMethods and StringBuilderMethods class. If a method is supposed to return a boolean value make sure to test for both true and false cases. If it is returning an array - print it out. For any value that is being returned, make sure to store it in an appropriate variable, and then use that value to test or print the return. (this makes sure that the return is of the proper type. If you are just printing it the print statement may be doing an invisible type cast)

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Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.