Question

plz check this coding.

Answer 1

import java.io.*;
public class StudentGrades
{
String grade;
public String getGrade()
{
return grade;
}
public void setGrade(String gradeS)
{
gradeS = grade;
}
public static void main(String[]args)throws
IOException
{
BufferedReader keyboard = new BufferedReader
(new InputStreamReader(System.in));

int marks;
StudentGrades sg = new StudentGrades();
System.out.println("Enter the marks");
marks = Integer.parseInt(keyboard.readLine());

if(marks>=80)
{
sg.setGrade("A+");

}
else if(marks>=75 && marks<=79)
{
sg.setGrade("A");
}
else if(marks>=70 && marks<=74)
{
sg.setGrade("A-");
}
else if(marks>=65 && marks<=69)
{
sg.setGrade("B+");
}
else if(marks>=64 && marks<=60)
{
sg.setGrade("B");
}
else if(marks>=55&& marks<=59)
{
sg.setGrade("B-");
}
else if(marks>=50 && marks<=54)
{
sg.setGrade("C+");
}
else if(marks>=45 && marks<=49)
{
sg.setGrade("C");
}
else if(marks>=40 && marks<=44)
{
sg.setGrade("C-");
}
else if(marks>=35 && marks<=39)
{
sg.setGrade("D");
}
else if(marks<=34)
{
sg.setGrade("F");
}
System.out.println("Grade is "+sg.getGrade());
}
}

Answer 2

I get the grade as null. Can any1 say why? plzzzzzzz :(

Answer 3

I get it right nw. :)