example.java

@FunctionalInterface
interface Test {
	public abstract void doThing();
}

//Place where code would be run
List<Test> tests = new ArrayList();
tests.add(() -> System.out.println("1"));
tests.add(() -> System.out.println("2"));
tests.add(() -> System.out.println("3"));
tests.add(() -> System.out.println("4"));
for(Test t : tests) t.doThing();