java类的初始化顺序

/**
 * 
 *
 * @author panql
 */
public class Aaaa extends Bbb {
	private int a = 12;

	private Ccc c = new Ccc();

	Aaaa() {
		super();
		System.out.println(a);
	}

	public static void main(String[] args) {
		new Aaaa();
	}
}

class Bbb {
	private int b;

	Bbb() {
		System.out.println("bbb");
	}

	public Bbb(int b) {
		this.b = b;
		System.out.println(b);
	}
}

class Ccc {
	Ccc() {
		System.out.println("ccc");
	}
}

 output：bbb

ccc

12