Write me a function that receives three integer inputs [требует правки]

/*****************************************************************
  Method: getTriangleType()
  Input: three integer sides a, b, c.
  Return: 1 - scalene, 2 - isosceles, 3 - equilateral, 4 - error.
*****************************************************************/
public int getTriangleType(int a, int b, int c) {
  if ((a + b) < c) {
  /* If sum of any of two sides less than third side, than it cannot be
     a triangle. I chose (a + b) < c, but (a + c) < b or (b + c) < a would 
     work too. */
     return 4;
  } else if(a == b || a == c || b == c) {
  /* If two of the three sides are equal than we check for equilateral. */
     if (a == b && a == c) {
        /*Here you can also use (b == a && b == c) or (c == a && c == b). */
        return 3;
     } else {
        /* If it is not equilateral, than it is isosceles*/
        return 2;
     }
  } else {
     /* Only scalene triangle left. */
     return 1;
  }
}