java继承与初始化

package seventhfuyonglei;

class Insect
{
	private int i=9;
	protected int j;
	Insect()
	{
		System.out.println("i="+i+" j="+j);
		j=39;
	}
	
	private static int x1=printInit("static Insect x1 initialized");
	
	static int printInit(String s)
	{
		System.out.println(s);
		return 47;
	}
}
public class Beetle extends Insect{

	private int k=printInit("Beetle k initialized");
	public Beetle()
	{
		System.out.println("k="+k);
		System.out.println("j="+j);
	}
	
	private static int x2=printInit("static Beetle x2 initialized");
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		System.out.println("Beetle constructor");
		Beetle b=new Beetle();
	}

}

 输出：

 static Insect x1 initialized
 static Beetle x2 initialized
 Beetle constructor
 i=9 j=0
 Beetle k initialized
 k=47
 j=39