q3-in NissanGTR class, create an overriding method of toString() to print the content from its superclass and the value of fuelIntake and airIntake.

q4-create a test program with its main() function. Then, create an instance of NissanGTR and invoke startUp, sportMode() with parameters and toString().

public class Cart protected double rpm; protected double fuelIntake; protected double airIntake; public void startUp() { rpm - 400; 1 public void sportMode () System.out.println("There is no sport mode by default."); ) public String toString() { return "The current rpm is " + rpm + ". ) public class NissanGTR extends Car 1/ 1(a) overriding method for startUp() 1/ 1(b) overloading method for sportMode () 1/ 1(c) overriding method for toString()