Operasimat | Rima

import javax.swing.JOptionPane;

public class Operasimat {
    public static void main (String[] args) {
        int n,i;

        float nilai,tot=0,rata=0,min=0,max=0;
        String str = JOptionPane.showInputDialog("Masukkan n:");
        n = Integer.parseInt(str);

        for(i=0;i<n;i++){
            String a = JOptionPane.showInputDialog("Masukkan nilai ke "+(i+1));
            nilai = Float.parseFloat(a);
            tot += nilai;

            if(i==0) {
                max = nilai;
                min = nilai;
            }
            else {
                if(min > nilai)
                    min = nilai;
                if(max < nilai)
                    max = nilai;
            }
        }

        rata=tot/n;
        System.out.println("Nilai rata-rata adalah: " + rata);
        System.out.println("Nilai tertinggi adalah: " + max);
        System.out.println("Nilai terendah adalah: " + min);

        System.exit(0);
    }
}