Contoh program else-if Java

GradeNilai.java

package pertemuan5;

import javax.swing.JOptionPane;

public class GradeNilai {
    
    public static void main(String[] args) {
        int nilaiHarian, nilaiUts, nilaiUas;
        double nilaiAkhir;
        String grade;
        
        // input
        nilaiHarian = Integer.valueOf(JOptionPane.showInputDialog("Input nilai harian:"));
        nilaiUts = Integer.valueOf(JOptionPane.showInputDialog("Input nilai UTS:"));
        nilaiUas = Integer.valueOf(JOptionPane.showInputDialog("Input nilai UAS:"));
        
        // proses (hitung rata-rata)
        nilaiAkhir = (nilaiHarian * 0.2 + nilaiUts * 0.3 + nilaiUas * 0.5);
        
        // proses (tentukan grade)
        if (nilaiAkhir >= 90){
            grade = "A";
        } else if(nilaiAkhir >= 80){
            grade = "B+";
        } else if(nilaiAkhir >= 70){
            grade = "B";
        } else if(nilaiAkhir >= 60){
            grade = "C+";
        } else if(nilaiAkhir >= 50){
            grade = "C";
        } else if(nilaiAkhir >= 40){
            grade = "D";
        } else if(nilaiAkhir >= 30){
            grade = "E";
        } else if(nilaiAkhir >= 20){
            grade = "F";
        } else {
            grade = "G";
        }
        
        // Output
        JOptionPane.showMessageDialog(null, "Nilai anda: " + nilaiAkhir);
        JOptionPane.showMessageDialog(null, "Grade: " + grade);
    }
    
}