2021.11.23，内容:题目。

/**

• Created by zmt on 2016/12/22.
  */
  public class Test {
  public static void main(String [] args){
  System.out.println(new B().getValue());
  }
  static class A{
  protected int value;
  public A(int v) {
  setValue(v);
  }
  public void setValue(int value){
  this.value = value;
  }
  public int getValue(){
  try{
  value++;
  return value;
  } catch(Exception e){
  System.out.println(e.toString());
  } finally {
  this.setValue(value);
  System.out.println(value);
  }
  return value;
  }
  }
  static class B extends A{
  public B() {
  super(5);
  setValue(getValue() - 3);
  }
  public void setValue(int value){
  super.setValue(2 * value);
  }
  }
  }