Example.java

abstract class Lambda {
	abstract public void func();
}

public class Example {
	public static void main(String args[]) {
		System.out.println("Begin main");
		final String hello = "Hello World!";
		functionCall(new Lambda() {
			public void func() {
				System.out.println("First lambda");
			}
		});
		functionCall(new Lambda() {
			public void func() {
				System.out.println("Main's 'hello': " + hello);
			}
		});
		System.out.println("End main");
	}

	static void functionCall(Lambda l) {
		System.out.println("function start");
		l.func();
		System.out.println("function end");
	}
}