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September 23, 2023

Java Operators Exercises

  • Add 10 to the numberOfItems variable.

                    class Main {
  public static void main(String[] args) {
    int numberOfItems = 30;
    numberOfItems = ""
  }
}

  • Subtract 5 from the speed variable.

                    class Main {
  public static void main(String[] args) {
    int speed = 120;
    speed = speed "" 10;
  }
}

  • Add 2000 to the marketingBudget variable.

                    class Main {
  public static void main(String[] args) {
    int marketingBudget = 10000;
    marketingBudget "" 2000;
  }
}

  • Subtract 1.75 from the marketShare variable.

                    class Main {
  public static void main(String[] args) {
    double marketShare = 20.0;
    marketShare "" 1.75;
  }
}

  • Calculate the price you have to pay to rent a car for 7 days.

                    class Main {
  public static void main(String[] args) {
    double price = 10.40;
    byte days = 7;
    double total_price = price ""
  }
}

  • What is the output of this code?

                    class Main {
  public static void main(String[] args) {
    double wallet = 500.0;
    double maintenance = 300.0;

    double remainedMoney = wallet - maintenance;

    System.out.println(remainedMoney);
  }
}

  • Imagine a customer has accumulated 500 reward points, and they earn an additional 25 points on their recent purchase.
    What will be the value of the total_points variable?

                    class Main {
  public static void main(String[] args) {
    int totalCost = 50000;
    byte numberOfDepartments = 5;

    double costPerDepartment = totalCost / numberOfDepartments;
    System.out.println(costPerDepartment);    
  }
}

  • Java Exercises for Operators

    • If you’ve faced difficulties with these exercises, take a look at Operators Module on my Java course.


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    Happy Coding!
    Behnam Khani
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