Generics Test class

Test.java

public class Test{
	public static interface FA<T extends Runnable> {
		void hello();
		T get();
	}

	public static interface FB  {
		void world();
	}

	public static interface FC  {
		void exq();
	}

	public static class Method {
		public <T extends FA<? super T>> void method(T a) {
			a.hello();
			System.out.println();
			a.get().run();
		}

		public <T extends FB & FC> void method(T a) {
			System.out.print(" ");
			a.world();
			System.out.print(" ");
			a.exq();
			System.out.println();
		}
	}

	private static class TestA implements FA<TestA>, Runnable {
		public void hello() {
			System.out.print("Hello");
		}
		public TestA get(){
			return new TestA();
		}
		@Override
		public void run() {
			System.out.println("ddddd");
		}
	}

	private static class TestBC implements FB, FC {
		public void hello() {
			System.out.print("Hello");
		}

		public void world() {
			System.out.print("World");
		}

		public void exq() {
			System.out.print("!");
		}
	}

	public static void main(String[] args) {
		Method method = new Method();
		method.method(new TestA());
		method.method(new TestBC());
	}
}