HELPHomework operator = cannot be applied to boolean, int???????

Question

Hi im struggling ive been searching on the net but i just cant seem to figure a way to get my code to work properly. Basically a user has to input a percent and the program outputs a grade. 95 or higher = A+,
90 or higher = A etc etc. this is my code
import java.util.Scanner;
public class GetGrades {
public static void main(String[] args) {
     Scanner keyboard = new Scanner(System.in);
     System.out.println("Please enter your grade: ");
     int gradeOne = keyboard.nextint();
     String myGrade;
     System.out.println("Your letter grade: " + myGrade);
     if(gradeOne >= 95)
     myGrade= "A+";
     else if(95 > gradeOne >= 92)
     myGrade= "A";
     else if(92 > gradeOne >= 87)
     myGrade= "A-";
     else if(87 > gradeOne >= 80)
     myGrade= "B+";
     else if(80 > gradeOne >= 75)
     myGrade= "B";
     else if(75 > gradeOne >= 70)
     myGrade= "B-";
     else if(70 > gradeOne >= 60)
     myGrade= "C";
     else if(60 > gradeOne >= 50)
     myGrade= "D";
     else
     myGrade= "F";
Can anyone please help :S

Answer 1

String myGrade;
System.out.println("Your letter grade: " + myGrade);The first line is declaring the variable, but is not setting a value to it so it is not pointing to anything (has no value not even an empty string). So, when you use the second line the compiler is saying that since the variable has not been initialized (at all) it can't.
Try something like this:
String myGrade = ""Nothing yet buddy :)";
System.out.println("Your letter grade: " + myGrade);or move your printline to after you assign the value to it in the if statement.