@Test
	public void testRemoveFirstOccurrence() {
		strings.add("Four");
		strings.add("Three");
		assertEquals("testing RemoveFirstOccurrence",true, strings.removeFirstOccurrence("Three"));
		assertEquals("testing RemoveFirstOccurrence",false, strings.removeFirstOccurrence("Five"));
		String[] expected = {"One", "Two","Four","Three"};
		assertArrayEquals("Testing Result",expected, strings.toArray() );
		
	}