class Splitter {

	public static List<String> getParts(String string, int partitionSize) {
		List<String> parts = new ArrayList<String>();
		int len = string.length();
		for (int i = 0; i < len; i += partitionSize) {
			parts.add(string.substring(i, Math.min(len, i + partitionSize)));
		}
		return parts;
	}

}

class SplitterTest {

	@Test
	public void testGetParts() {

		String s = "abcdefg";
		List<String> parts = Splitter.getParts(s, 3);

		assertEquals(parts.get(0), "abc");
		assertEquals(parts.get(1), "def");
		assertEquals(parts.get(2), "g");

	}

}