non-static variable grade cannot be referenced from a static context

[pictianpravin]

public enum Scale2
{
GOOD('C') { public char getGrade() { return grade; } },
BETTER('B') { public char getGrade() { return grade; } },
BEST('A') { public char getGrade() { return grade; } };

private char grade;

Scale2(char grade)
{
this.grade=grade;
}

// Insert your code here

public static void main(String[] args)
{
System.out.println(GOOD.getGrade());
}
}

/* which following code when inseted at line shown above will make prog print C choose two correct answers*/

a ) public char getGrade() { return grade;}
b) public int getGrade() { return grade;}
c) abstract public int getGrade();
d) abstract public char getGrade();

/* when i compile and run above program it gives error as below for all option as answer */
C:\Scale2.java:3: non-static variable grade cannot be referenced from a static context
GOOD('C') { public char getGrade() { return grade; } },
^
C:\Scale2.java:4: non-static variable grade cannot be referenced from a static context
BETTER('B') { public char getGrade() { return grade; } },
^
C:\Scale2.java:5: non-static variable grade cannot be referenced from a static context
BEST('A') { public char getGrade() { return grade; } };
^
3 errors

Process completed.

how do i make this program work ?

[Aseem]

your main method is static but enum is non-static. make it static and try.

[Fubarable]

The methods should not be in the enum declarations but in the enum itself:

public enum Scale2 {
  GOOD('C'),  BETTER('B'),
  BEST('A');

  private char grade;

  Scale2(char grade) {
    this.grade = grade;
  }
  
  public char getGrade() { return grade;}


  public static void main(String[] args) {
    System.out.println(GOOD.getGrade());
  }
}

Whatever you do, don't declare anything static here. Aseem meant well, but it's wrong advice.

[Tolls]

Um...it's a test.
The code as supplied isn't intended to compile.
You're supposed to figure out which 2 of a,b,c or d will get it to work.

And I'm not going to tell you which two it is...:)

ETA: Bugger...I sit corrected!

They've made an error in the code...that "grade" should be protected...