Programming Concepts using Java, Quiz 2

September 2025 term, 23 Nov 2025, Set QDD2

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Question 1

+7−0Multiple correctInstructions

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Select all that apply

Select all that apply.

• A.

  students.stream()
  .map(s -> s.grade >= 70.0 && s.grade <= 90.0)
  .forEach(s -> System.out.println(s.name));

• B.

  students.stream()
  .filter(s -> s.grade >= 70.0 && s.grade <= 90.0)
  .forEach(s -> System.out.println(s.name));

• C.

  students.stream()
  .filter(s -> s.grade >= 70.0)
  .filter(s -> s.grade <= 90.0)
  .forEach(s -> System.out.println(s.name));

• D.

  students.stream()
  .filter(s -> s.grade >= 70.0)
  .map(s -> s.grade <= 90.0)
  .forEach(s -> System.out.println(s.name));

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Figure from the original question paper Consider the code given below.\ interface Vehicle \{\ public abstract double getFuelEfficiency();\ \}\ class Car implements Vehicle, Cloneable \{\ protected double fuelCapacity;\ protected double mileage;\ public Car(double fuel, double m) \{\ fuelCapacity = fuel;\ mileage = m;\ \}\ public double getFuelEfficiency() \{\ return fuelCapacity \* mileage;\ \}\ public Car clone() throws CloneNotSupportedException \{\ return (Car) super.clone();\ \}\ \}\ class ElectricCar extends Car \{\ public ElectricCar(double batteryCapacity, double mileage) \{\ super(batteryCapacity, mileage);\ \}\ public ElectricCar clone() throws CloneNotSupportedException \{\ return (ElectricCar) super.clone();\ \}\ \}\ public class VehicleTest \{\ public static void main(String\[\] args) \{\ try \{\ ElectricCar e1 = new ElectricCar(50, 2);\ ElectricCar e2 = e1.clone();\ e1.fuelCapacity = 100;\ System.out.print(e1.getFuelEfficiency() + e2.getFuelEfficiency());\ \} catch (CloneNotSupportedException e) \{\ System.out.println("Cloning not supported");\ \}\ \}\ \}\ What will the output be? Figure from the original question paper