### Question:
Crack { static boolean isRepeated(String text, String part) { int first = text.indexOf(part); int second = text.indexOf(part, first + part.length()); return second >= 0; }    }### Answer:
@Test public void isRepeated() { assertTrue(Crack.isRepeated("AB__AB", "AB")); assertTrue(Crack.isRepeated("CSASTPKVSIQUTGQUCSASTPIUAQJB", "CSASTP")); }