m6 buff program

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package Matkul;

/**
 *
 * @author kumal
 */

public class M6_nilaiBuff {
    public static void main(String[] args) throws java.io.IOException {
        java.io.BufferedReader input = new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
        System.out.print("Masukkan nilai A : ");
        double A = Double.parseDouble(input.readLine());
        System.out.print("Masukkan nilai B : ");
        double B = Double.parseDouble(input.readLine());
        System.out.print("Masukkan nilai C : ");
        double C = Double.parseDouble(input.readLine());
        double r = (A+B+C)/3;
        if (r>=60) {
            System.out.println(String.format("Nilai rata-rata : %.2f", r) + " :-)");
        } else {
            System.out.printf("Nilai rata-rata : %.2f :-(\n", r);
        }
    }
}