Membuat pilihan nilai dengan java

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package praktikumpbo;

import javax.swing.JOptionPane;

/**
 *
 * @author AN
 */
public class soal3 {
    public static void main(String []args){
        String c=JOptionPane.showInputDialog("NILAI ANDA");
        int d=Integer.parseInt(c);
       
        if(d>79)
        JOptionPane.showMessageDialog(null,"Nilai mu : "+"A");
        else if(d>69)
      JOptionPane.showMessageDialog(null,"Nilai mu : "+"B");
        else if(d>55)
       JOptionPane.showMessageDialog(null,"Nilai mu : "+"C");
        else if(d>39)
       JOptionPane.showMessageDialog(null,"Nilai mu : "+"D");
        else
            JOptionPane.showMessageDialog(null,"Nilai mu : "+"E");
       
           
    }
}

Hasil

Berapa Nilai Ujian PBO Anda : (Misal jawabannya 70)

Maka hasilnya

Nilai Anda Adalah B

Ket :

Nilai

80 - 100 = A
70 - 79 = B
56 - 69 = C
40 - 55 = D
Kurang dari 40 = E