Karakter Rekursif | ASD

package lat02;
import java.util.Scanner;

/**
 * @author yufieko
 */

public class KarakterRekursif {
    public static void KombinasiKara(String a,int n, int jum) {
        if (n==0) System.out.println(a);
        else for (int i=97;i<97+jum;i++) KombinasiKara(a+(char)i,n-1,jum);
    }
    public static void main(String[]args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Masukkan jumlah N karakter : ");
        int n = input.nextInt();

        KombinasiKara("",n,n);
    }
}