JAVA else if 실습 성적에 따라 학점 결정하기

import java.util.Scanner;

public class Test005 {

public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int g;

System.out.print("성적을 입력하시오: ");
g = sc.nextInt();

if(g<60)
System.out.println("F");
else
if(g<70)
System.out.println("D");
else
if(g<80)
System.out.println("C");
else
if(g<90)
System.out.println("B");
else
System.out.println("A");

}

}