Question

Question 2: Write a java program that calculates the weighted average of three grades

using the method with header public static double CalculateWeightedAverage (double

grade1, double grade2, double grade3), such that: [4 Marks]

Weighted average = grade1 * 0.5 + grade2 * 0.25 + grade3 * 0.25

The program in the main method will:

o ask the user to enter the three grades

o and then call the method that will calculate the weighted average

o and finally display the weighted average

Answer 1

Answer for the above question:

code:

import java.util.*;

class Main{

   public static double CalculateWeightedAverage(double grade1,double grade2,double grade3 ){
      double weighted_average = grade1*0.5+grade2*0.25+grade3*0.25;

      return weighted_average;
   }


   public static void main(String args[]){

      Scanner scnr = new Scanner(System.in);
      System.out.print("Enter grade1 :");
      double grade1 = scnr.nextDouble();
      System.out.print("Enter grade2 :");
      double grade2 = scnr.nextDouble();
      System.out.print("Enter grade3 :");
      double grade3 = scnr.nextDouble();

      double weighted_average = CalculateWeightedAverage(grade1,grade2,grade3);

      System.out.println("Weighted average of three grade :"+weighted_average);

   }
}

OUTPUT:

PS: If you have any doubt please mention in comment section. I will solve it.