//问题1

class SS
{
//private  Singleton
///obj = new Singleton();
public  int counter1;
public  int counter2 = 0;
 public  SS() {
counter1++;
counter2++;
}
/*public static Singleton getInstance()
{
return obj;
} */
public static void main(){
 SS obj = new SS();
 System.out.println(obj.counter1);
 System.out.println(obj.counter2);
}
}

// main()未定义数组

//反编译命令是C:>javap -c -classpath . Singleton

//请高手留贴说明为什么运行不了

//问题2

public class AA{
 public static void main(String args[]){
  
  CC cc=new CC();
  System.out.println(cc.toString());
  }
 }
 
 
 class BB{StringBuffer output=new StringBuffer("?);
 public String toString(){
  return output;
  }
 
  }
 
 
 class CC extends BB{
  public String toString(){
   return super.toString();
   }
  
  }

//toString()不能把StringBuffer()类型转换为Stirng?

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