Java: 匿名クラス+インスタンス初期化子の例

Example.java

import java.util.List;
import java.util.ArrayList;

// http://d.hatena.ne.jp/t_yano/20080622/1214087678
public class Example {
	public static void main(String[] args) {
		List<Person> list = new ArrayList<Person>() {{
			add(new Person(){{ name = "foo"; age = 20; }});
		}};

		for (Person p : list) {
			System.out.printf("%s (%d)", p.name, p.age);
		}
	}
}

Person.java

public class Person {
	public String name;
	public int age;
}