I'm supposed to design a method that takes in a double value and translates the value into the closest letter grade. 4,3,2,1,0 denote A, B,C,D,F, respectively. + increases a grade's numerical value by 0.3 and - decreases a grade's numerical value by 0.3. There is no F+ or F-. A+ is 4.0

Here is the problem: How do I change my method so that when I enter 2.8, the grade returned will be a B- and when I enter 2.85, the grade returned will be a B? Here's whaT I got:

public class Grade
{
	public Grade(double numGrade)
	{
		num = numGrade;
	}
	public String getLetterGrade()
	{
		String grade = null;
		double numGrade = (double)Math.round(num);

		System.out.println(numGrade);

		if (numGrade > 3.7)
			grade = "A+";
		else if (numGrade <= 3.7 && numGrade > 3.3)
			grade = "A-";
		else if (numGrade <= 3.3 && numGrade > 3.0)
			grade = "B+";
		else if (numGrade <= 3.0 && numGrade > 2.7)
			grade = "B";
		else if (numGrade <= 2.7 && numGrade > 2.3)
			grade = "B-";
		else if (numGrade <= 2.3 && numGrade > 2.0)
			grade = "C+";
		else if (numGrade <= 2.0 && numGrade > 1.7)
			grade = "C";
		else if (numGrade <= 1.7 && numGrade > 1.3)
			grade = "C-";
		else if (numGrade <= 1.3 && numGrade > 1.0)
			grade = "D+";
		else if (numGrade <= 1.0 && numGrade > 0.7)
			grade = "D-";
		else if (numGrade < 0.7)
			grade = "F";

		return grade;
	}
	private double num;
}
import java. util.Scanner;

/**
   This class prints the letter grade corresponding to a numeric value given
   by the user.
*/
public class GradePrinter
{
   public static void main(String[] args)
   {
      Scanner in = new Scanner(System.in);

      System.out.println("Enter a numeric value:");
      double numGrade = in.nextDouble();

      Grade g = new Grade(numGrade);

      System.out.println("Letter grade: " + g.getLetterGrade()) ;
   }
}

Don't tell me that you are not even capable of changing the numbers in that block of if statements. If that is the case then I want to know who you copied the code from, because you definately did not write it, in that case.

Yeah, just change the numbers in the if statements.

Fyi, you don't need the first boolean comparison in the if statements.

Example:

if (numGrade > 3.7)
grade = "A+";
else if (numGrade <= 3.7 && numGrade > 3.3)

For the program to even get to the else if, numGrade has to be less than or equal to 3.7.

So, you can change all of the else ifs to:

else if (numGrade > [# here] )
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