private static void test6(){
		String s1 = "dupa aaaaaaaa";
		String s2 = "du";
		
		boolean b = s1.contains(s2);
		System.out.println(b);
		
		FileManager fm = new FileManager();
		String s3 = fm.pobierzTekstZPliku("\\temp\\akredytacja.txt");
		System.out.println(s3);
	}