Thread: Trying to calculate GPA

Code:

import

Code:

 java.util.Scanner; 

publicclass gpa {

   publicstaticvoid main(String[] args){
      double gpa=0;
      double input =0;
      String grade="";
      int classes =0;
      double fail =0;
      do
      {
         System.out.print("Enter Grade (n to quit): "); 
         Scanner sc =newScanner(System.in); 
          grade = sc.nextLine(); 
          grade = grade.toLowerCase(); 
          if(grade.equals("a"))
          {
             input =4.0;
          }
          if(grade.equals("b"))
          {
             input =3.0;
          }
          if(grade.equals("c"))
          {
             input =2.0;
          }
          if(grade.equals("d"))
          {
             input =1.0;
          }
          if(grade.equals("f"))
          {
             fail =1;
          }

          gpa+=input;
          classes++;
      }while(grade!="n");
      System.out.print("GPA: "+ gpa +"   "); 

      gpa/=classes;
      if(gpa>=2&& classes >=4&& fail !=1)
      {
         System.out.print("Eligible");    
      }
      elseif(classes <4)
      {
         System.out.print("Ineligible. less than 4 classes"); 
      }
      elseif(gpa <2.0)
      {
         System.out.print("Ineligible. GPA is less than 2.0"); 
      }
      elseif(gpa >=2.0&& fail ==1)
      {
         System.out.print("Ineligible. GPA is above 2.0, but has an F");
      }
      elseif(gpa <2.0&& fail ==1)
      {
         System.out.print("Ineligible. GPA is below 2.0 and has F");
      }
   }

}

Here's what I need to be able to output:

1. Eligible
2. Ineligible, taking less than 4 classes
3. Ineligible, gpa below 2.0
4. Ineligible, gpa above 2.0 but has F grade (note: gpa >= 2.0)
5. Ineligible, gpa below 2.0 and has F grade

It keeps asking for input. How do I stop this? I tried converting grade into a char but that ended horribly for me. I think it might be a compiler error or something. Any help would be appreciated. Though helpful help would keep my blood pressure down.

Source: https://gpahub.net/