单选题现有:  class Guy  {  String greet()  {  return "hi";  } } class Cowboy extends Guy  {  String greet()  {  return. "howdy";}}  class  Wrangler  extends  Cowboy  {  String  greet()  {  return  "orch!"; } }  class Greetings2  {  public  static void main (String  []  args)  {  Guy g=new Wrangler();  Guy g2=new Cowboy();  Wrangler w2=new Wrangler();  System. out .print (g.greet()+g2.greet()+w2 .greet());  }  }  结果是什么?()A hi hi ouch!B ouch!  howdy  ouch!C hi howdy ouch!D编译失败E运行的咐候有异常抛出

单选题
现有:  class Guy  {  String greet()  {  return "hi";  } } class Cowboy extends Guy  {  String greet()  {  return. "howdy";}}  class  Wrangler  extends  Cowboy  {  String  greet()  {  return  "orch!"; } }  class Greetings2  {  public  static void main (String  []  args)  {  Guy g=new Wrangler();  Guy g2=new Cowboy();  Wrangler w2=new Wrangler();  System. out .print (g.greet()+g2.greet()+w2 .greet());  }  }  结果是什么?()
A

 hi hi ouch!

B

 ouch!  howdy  ouch!

C

 hi howdy ouch!

D

编译失败

E

运行的咐候有异常抛出


参考解析

解析: 暂无解析

相关考题:

interface A{int x = 0;}class B{int x =1;}class C extends B implements A {public void pX(){System.out.println(x);}public static void main(String[] args) {new C().pX();}}

class A {   public String toString () {   return “4”;   }   }   class B extends A {   8. public String toString () {   return super.toString() + “3”;   }   }   public class Test {   public static void main(Stringargs) {   System.out.printIn(new B());   }   }   What is the result?()  A、 Compilation succeeds and 4 is printed.B、 Compilation succeeds and 43 is printed.C、 An error on line 9 causes compilation to fail.D、 An error on line 14 causes compilation to fail.E、 Compilation succeeds but an exception is thrown at line 9.

现有:  class Tree {  private static String tree = "tree ";  String getTree ()  {  return tree;  }       }  class Elm extends Tree {  private static String tree = "elm ";  public static void main (String  []  args)  {       new Elm() .go (new Tree())  ;      } }  void go (Tree t)  {  String  s =  t.getTree () +Elm.tree  +  tree  +   (new  Elm() .getTree ()) ;      System.out.println (s) ;}     结果为:()                 A、 elm elm elm elmB、 tree elm elm elmC、 tree elm elm treeD、 tree elm tree elm

现有:  class Parser (类)extends(继承) Utils {   public static void main(String [] args) {   System.out.print(输出打印)(new Parser().getInt("42"));  }   int getInt(String arg) {   return Integer.parseInt(arg);    }   }   class Utils {   int getInt(String arg) throws Exception { return 42; }  }   结果为:()  A、 42B、 编译失败。C、 无输出结果。D、 运行时异常被抛出。

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 ()  {  return 42;  }     }  结果是什么?()      A、 42ExcB、 ExcC、 42D、编译失败

class Guy { String greet() { return "hi "; } }  class Cowboy extends Guy { String greet() { return "howdy "; } }  class Wrangler extends Cowboy { String greet() { return "ouch! "; } }  class Greetings2 {  public static void main(String [] args) {  Guy g = new Wrangler();  Guy g2 = new Cowboy();  Wrangler w2 = new Wrangler();  System.out.print(g.greet()+g2.greet()+w2.greet());  }  }  结果是什么?() A、hi hi ouch!B、hi howdy ouch!C、ouch! howdy ouch!D、编译失败

class Guy{String greet(){return “hi“}}   class Cowboy extends Guy {String greet(){return“howdy”}}   class Surfer extends Guy {String greet(){return“dudel”}}  class Greetings{   public static void main (string[]args){   Guy[] guy= {new Guy(),new Cowboy(),new Surfer()};   for(Guy 0: guys)   System.out.print(g.green());  }   }   结果为:  A、运行时异常被输出B、第7行出现一个错误,编译失败C、第8行出现一个错误,编译失败D、hi hi hiE、hi hawdy doude

class Mineral {   static String shiny() { return "1"; }   }   class Granite extends Mineral {   public static void main(String [] args) {   String s = shiny() + getShiny();   s = s + super.shiny();   System.out.println(s);   }   static String getShiny() { return shiny(); }   }   结果为:()  A、3B、12C、111D、编译失败

现有:  class Guy  {  String greet()  {  return "hi";  } } class Cowboy extends Guy  {  String greet()  {  return. "howdy";}}  class  Wrangler  extends  Cowboy  {  String  greet()  {  return  "orch!"; } }  class Greetings2  {  public  static void main (String  []  args)  {  Guy g=new Wrangler();  Guy g2=new Cowboy();  Wrangler w2=new Wrangler();  System. out .print (g.greet()+g2.greet()+w2 .greet());  }  }  结果是什么?()     A、 hi hi ouch!B、 ouch!  howdy  ouch!C、 hi howdy ouch!D、编译失败E、运行的咐候有异常抛出

public class X {  public X aMethod() { return this;}  }  public class Y extends X {  }  Which two methods can be added to the definition of class Y?()A、 public void aMethod() {}B、 private void aMethod() {}C、 public void aMethod(String s) {}D、 private Y aMethod() { return null; }E、 public X aMethod() { return new Y(); }

现有:  class Guy {String greet()    {return "hi";  }  }  class Cowboy extends Guy  (  String greet()    (  return "howdy  ¨;    )  )  class Surfer extends Guy  (String greet()    (return "dude! ";)) class Greetings  {  public static void main (String  []  args)    {  Guy  []  guys =  ( new Guy(), new Cowboy(), new Surfer()  );  for (Guy g:  guys) System.out.print (g.greet()};  }  }  结果为:() A、 hi howdy dude!B、运行时异常被抛出。C、第7行出现一个错误,编译失败。D、第8行出现一个错误,编译失败。

final class Tree {  private static String tree = "tree ";  String getTree() { return tree; }  }  class Elm extends Tree {  private static String tree = "elm "; public static void main(String [] args) {  new Elm().go(new Tree());  }  void go(Tree t) {  String s = t.getTree()+Elm.tree+tree+(new Elm().getTree());  System.out.println(s);  } }  结果为:() A、elm elm elm elmB、tree elm elm elmC、tree elm tree elmD、编译失败

class Parser extends Utils {  public static void main (String [] args) {  try { System.out.print(new Parser().getInt("42"));  } catch (NumberFormatException n) {  System.out.println("NFExc "); }  }  int getInt(String arg) throws NumberFormatException {  return Integer.parseInt(arg);  }  }  class Utils {  int getInt(String arg) { return 42; }  }  结果为:() A、42B、NFExcC、42NFExcD、编译失败

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 :()A、 NFExcB、 42C、 42NFExcD、编译失败

class Parser extends Utils {  public static void main(String [] args) {   System.out.print(new Parser().getInt("42"));  }  int getInt(String arg) {  return Integer.parseInt(arg);  }  }  class Utils {  int getInt(String arg) throws Exception { return 42; }  }  结果为:() A、42B、编译失败C、无输出结果D、运行时异常被抛出

单选题现有:   class Parser extends Utils {   public static void main(String [] args) {     System.out.print(new Parser().getInt("42"));    }   int getInt(String arg) {  return Integer.parseInt(arg);  }    }   class Utils {     int getInt(String arg) throws Exception { return 42; }    }    结果为()A 42B 编译失败。C 无输出结果。D 运行时异常被抛出。

单选题现有:  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()A 42B ExcC 42ExcD编译失败

单选题final class Tree {  private static String tree = "tree ";  String getTree() { return tree; }  }  class Elm extends Tree {  private static String tree = "elm "; public static void main(String [] args) {  new Elm().go(new Tree());  }  void go(Tree t) {  String s = t.getTree()+Elm.tree+tree+(new Elm().getTree());  System.out.println(s);  } }  结果为:()Aelm elm elm elmBtree elm elm elmCtree elm tree elmD编译失败

单选题class Guy{String greet(){return “hi“}}   class Cowboy extends Guy {String greet(){return“howdy”}}   class Surfer extends Guy {String greet(){return“dudel”}}  class Greetings{   public static void main (string[]args){   Guy[] guy= {new Guy(),new Cowboy(),new Surfer()};   for(Guy 0: guys)   System.out.print(g.green());  }   }   结果为:A运行时异常被输出B第7行出现一个错误,编译失败C第8行出现一个错误,编译失败Dhi hi hiEhi hawdy doude

单选题现有:  class Guy  {  String greet()  {  return "hi";  } } class Cowboy extends Guy  {  String greet()  {  return. "howdy";}}  class  Wrangler  extends  Cowboy  {  String  greet()  {  return  "orch!"; } }  class Greetings2  {  public  static void main (String  []  args)  {  Guy g=new Wrangler();  Guy g2=new Cowboy();  Wrangler w2=new Wrangler();  System. out .print (g.greet()+g2.greet()+w2 .greet());  }  }  结果是什么?()A hi hi ouch!B ouch!  howdy  ouch!C hi howdy ouch!D编译失败E运行的咐候有异常抛出

单选题class Parser extends Utils {  public static void main (String [] args) {  try { System.out.print(new Parser().getInt("42"));  } catch (NumberFormatException n) {  System.out.println("NFExc "); }  }  int getInt(String arg) throws NumberFormatException {  return Integer.parseInt(arg);  }  }  class Utils {  int getInt(String arg) { return 42; }  }  结果为:()A42BNFExcC42NFExcD编译失败

多选题public class X {  public X aMethod() { return this;}  }  public class Y extends X {  }  Which two methods can be added to the definition of class Y?()Apublic void aMethod() {}Bprivate void aMethod() {}Cpublic void aMethod(String s) {}Dprivate Y aMethod() { return null; }Epublic X aMethod() { return new Y(); }

单选题现有:  class Tree {  private static String tree = "tree ";  String getTree ()  {  return tree;  }       }  class Elm extends Tree {  private static String tree = "elm ";  public static void main (String  []  args)  {       new Elm() .go (new Tree())  ;      } }  void go (Tree t)  {  String  s =  t.getTree () +Elm.tree  +  tree  +   (new  Elm() .getTree ()) ;      System.out.println (s) ;}     结果为:()A elm elm elm elmB tree elm elm elmC tree elm elm treeD tree elm tree elm

单选题class Mineral {   static String shiny() { return "1"; }   }   class Granite extends Mineral {   public static void main(String [] args) {   String s = shiny() + getShiny();   s = s + super.shiny();   System.out.println(s);   }   static String getShiny() { return shiny(); }   }   结果为:()A3B12C111D编译失败

单选题现有:  class Guy {String greet()    {return "hi";  }  }  class Cowboy extends Guy  (  String greet()    (  return "howdy  ¨;    )  )  class Surfer extends Guy  (String greet()    (return "dude! ";)) class Greetings  {  public static void main (String  []  args)    {  Guy  []  guys =  ( new Guy(), new Cowboy(), new Surfer()  );  for (Guy g:  guys) System.out.print (g.greet()};  }  }  结果为:()A hi howdy dude!B运行时异常被抛出。C第7行出现一个错误,编译失败。D第8行出现一个错误,编译失败。

单选题现有  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 ()  {  return 42;  }     }  结果是什么?()A 42ExcB ExcC 42D编译失败

单选题class A {   public String toString () {   return “4”;   }   }   class B extends A {   8. public String toString () {   return super.toString() + “3”;   }   }   public class Test {   public static void main(Stringargs) {   System.out.printIn(new B());   }   }   What is the result?()A Compilation succeeds and 4 is printed.B Compilation succeeds and 43 is printed.C An error on line 9 causes compilation to fail.D An error on line 14 causes compilation to fail.E Compilation succeeds but an exception is thrown at line 9.

单选题class Guy { String greet() { return "hi "; } }  class Cowboy extends Guy { String greet() { return "howdy "; } }  class Wrangler extends Cowboy { String greet() { return "ouch! "; } }  class Greetings2 {  public static void main(String [] args) {  Guy g = new Wrangler();  Guy g2 = new Cowboy();  Wrangler w2 = new Wrangler();  System.out.print(g.greet()+g2.greet()+w2.greet());  }  }  结果是什么?()Ahi hi ouch!Bhi howdy ouch!Couch! howdy ouch!D编译失败