Providing a testplan known as Bank Customer with a specific code that: Accepts at least two parameters that are passed into the method, including one that is numeric, At least one numeric value that will be returned by the method, A variable that is legally declared twice (with the same name both times) within the method. Also, explain the function of each parameter and variable you included in your selected method. Add the method created into a Java test application and call the created method from the main method of the test application