private static void withGenerics() {
		GenericContainer<String,Integer> c = new GenericContainer<>();
		c.setInternal("str");
		
		String str = c.getInternal();
		System.out.println(str);
		
//		GenericContainer<String, int> c;
		if (c instanceof GenericContainer) {
			
		}
		
		String[] arr = new String[10];
		Double[] arr2 = new Double[10];
		
		String middle = GenericContainer.getMiddle(arr);
		GenericContainer.getMiddle(arr2);
	}