package com.komputasiawan.combinatoric;

public class Kombinasi {
	int counter = 0;

	public void cetakSemua(String[] kata)
	{
		System.out.print(++counter + ",");
		for (int i = 0; i < kata.length; i++) {
			System.out.print(kata[i] + (i!=kata.length-1? "," : ""));
		}
		System.out.println();
	}

	public void prosesKombinasi(String[] kata, int panjangKombinasi)
	{
		for(int startIdx=0; startIdx<=kata.length-panjangKombinasi; startIdx++)
		{
			for(int i=startIdx+1; i<= (kata.length-panjangKombinasi+1);i++)
			{
				String[] kata2 = new String[panjangKombinasi];
				System.arraycopy(kata, i, kata2, 1, panjangKombinasi-1);
				kata2[0] = kata[startIdx];
				cetakSemua(kata2);
			}
		}
	}

	public static void main(String[] args) {
		String[] kata = {"A", "B", "C", "D", "E","F"};

		new Kombinasi().prosesKombinasi(kata, 5);
	}
}