this 构造器中调用构造器

public class Flower {String s = "i:";Flower(int i){System.out.println("1:"+i);}Flower(int i,String s){this(i);this.s = s;System.out.println("2:"+s);}Flower(){this(1,"ss");//this(1);System.out.println("0:");}public static void main(String[] args){Flower x = new Flower();}}