7. Consider the following method: Which of the following best describes the task performed by this method? A. Sorts an array in ascending order B. Sorts an array in descending order C. Swaps the first and last elements of an array D. Reverses the order of elements in an array E. None of the above tasks is implemented correctly 8. Assume that the int variables a and b have been properly declared and initialized. For which of the following pairs of values of a and b is the value of the following expression true? A. 5 and 0 B. 5 and 10 C. 15 and 10 D. 15 and 20 E. None of the above Brad has derived his class from a library class JPanel. JPanel's paintComponent method prints a blank picture in a panel. Brad has overridden JPanel's paintComponent to display his own picture. Brad's class compiles with no errors, but when he runs the program, only a blank background is displayed. Which of the following hypotheses cannot be true in this situation? A. Brad misspelled "paintComponent" in his method's name. B. Brad specified an incorrect return type for his paintComponent method. C. Brad chose the wrong type for a parameter in his paintComponent method. D. Brad specified two parameters for his paintComponent method, while JPanel's paintComponent takes only one parameter. E. Brad has a logic error in his paintcomponent code which prevents it from generating the picture