class Demo1{
{    x = 2;
}
  int x =1;
{
  x = 3;
}
public Demo1(){
       this.x = 4;
}
public Demo1(int x){
       this();
}
public void showX(){
       int x = 5;
       System.out.println(this.x + x);
}
public static void main(String [] args){
        new Demo1(5).showX();
}
}
求打印出来的值？

顶一个。。。么么哒