相关考题

单项选择题 现有:  1.  class Propeller2  {  2.   pulolic static void main (String[]args)//add code here?      3.    {  new Propeller2().topGo();  }      4.  5.void topGo()  //add code here?      6.    {   middleGo();  }      7.  8.void middleGo()  //add code here?  9. {   go();  System.out.println ("late middle");  }    void go()  //add code here?      12.    {throw new Exception();  }      13.  }  为使代码通过编译,需要在哪一行加入声明throws Exception?()

单项选择题 现有:  class Parser extends Utils  { public static void main (String[]  args)    {     try{System.out.print (new Parser().getlnt("42"));      } catch (Exception e)    {      System.out.println("Exc");  }      }  int getlnt (String arg) throws Exception  {      return Integer.parselnt (arg);      }       class Utils  {  int getlnt (String arg)    {return 42;  }      }      结果为()

单项选择题 现有:  class  Parser extends  Utilis  {  public static void main (String  []  args)  {  try  {  System. out.print (new  Parser ( ) .getlnt ("42")} ;     }  catch (NumberFormatException n) {  System.out .println ( "NFExc" ) ;   }     }  int getlnt (String arg)  throws NumberFormatException{    return Integer.parselnt (arg) ;     }     class Utils {  int getlnt (String arg)  {  return 42;  }    }  结果为 :()