现有:  class ThreadExcept implements Runnable  {  public void run()  {  throw new RuntimeException("exception ");  }  public static void main(Stri_ng  []  args)  {  new  Thread (new  ThreadExcept()).start();  try  {  int x=Integer.parselnt (args [0]);  Thread. sleep (x);  System.out.print("main");  } catch (Exception e)  {  }  }  }  和命令行:  java ThreadExcept l000     哪一个是结果?()    A、mainB、编译失败C、main java.lang.RuntimeException: exceptionD、代码运行,但没有输出

现有:  class ThreadExcept implements Runnable  {  public void run()  {  throw new RuntimeException("exception ");  }  public static void main(Stri_ng  []  args)  {  new  Thread (new  ThreadExcept()).start();  try  {  int x=Integer.parselnt (args [0]);  Thread. sleep (x);  System.out.print("main");  } catch (Exception e)  {  }  }  }  和命令行:  java ThreadExcept l000     哪一个是结果?()    

  • A、main
  • B、编译失败
  • C、main java.lang.RuntimeException: exception
  • D、代码运行,但没有输出

相关考题:

现有如下包结构:com|--x||--Alpha.class||||--y||--Beta.class||--Gamma.class和类:classTest{Alphaa;Betab;Gammac;}哪三个必须加入到类Test中,以使其通过编译?() A.packagey;B.packagecom;C.importcom.x.*;D.importcom.x.y.*

现有如F包结构:com|一一X||一一Alpha.class||||一一yI|一一Beta.class||l--Gamma.class和类:classTest{Alphaa;Betab;Gammac;}哪三个必须加入到类Test中,以使其通过编译?() A.packagey;B.packagecom;C.importcom.x.y.*;D.importcom.x.*;

现有两个类A,B,以下描述中表示B继承自A的是 ( )A.class A extends BB.class B implements AC.class A implements BD.class B extends A

下面程序输出的结果为 #include"iostream.h" class A { public: A(){cout<<"CLASSA"<<endl;} ~A() {} }; class B:public A { public: B(){cout<<"CLASSB"<<endl;} ~B() {} }; void main() { A * p; p=new B; B *q; q=new B; }A.CLASS A CLASS BB.CLASS A CLASS B CLASS BC.CLASS A CLASS B CLASS A CLASS BD.CLASS A CLASS B CLASS B CLASS B

下面程序输出的结果为#include"iostream.h"class A{public:A( ){cout<<"CLASS A"<<endl;}~A( ){}};class B:public A{public:B( ){cout<<"CLASS B"<<endl;}~B( ){}};void main( ){A*p;p=new B;B *q;q=new B;}A.CLASS A CLASS BB.CLASS A CLASS B CLASS BC.CLASS A CLASS B CLASS A CLASS BD.CLASS A CLASS B CLASS B CLASS B

下面程序输出的结果为 #include"iostream.h” class A { public: A(){cout<<"CLASSA"<<endl;} ~A() {} }; class B:public A { public: B(){cout<<"CLASS B"<<endl;} ~B(){} }; void main() { A*p; p=new B;A.CLASS A CLASS B CLASS B CLASS BB.CLASS A CLASS B CLASS A CLASS BC.CLASS A CLASS B CLASS BD.CLASS A CLASS B

下面程序输出的结果为( )。 #inClUde”iostream.h” Class A {public: A(){cout<<“CLASS A”<<endl;} ~A()<)}; class B:public A {public: B(){cout<<”CLASSB”<<endl;} ~B(){}}; void main() {A*p; p=new B; B *q; q=new B;}A.CLASS A CLASS BB.CLASS A CLASS B CLASS BC.CLASS A ClASS BD.CLASS A CLASS B CLASS A CLASS B CLASS B CLASS B

对于下面( )类定义,可以通过“newJ_Class()”生成类J_Class的实例对象。A、publicclassJ_Class{publicJ_Class(void){}}B、publicclassJ_Class{}C、publicclassJ_Class{publicJ_Class(Strings){}}D、publicclassJ_Class{publicvoidJ_Class(){}publicJ_Class(Strings){}

现有包结构:  com |-- x | |-- Alpha.class | | | |-- y | |-- Beta.class | |-- Gamma.class  和类:  //insert code here  import com.*;  import com.x.y.*;  class Test { Alpha a; Beta b; Gamma c; }  哪两行分别插入后可允许代码编译?() A、package com.;B、import com.x;C、package com.x;D、import com.x.Alpha;

现有:  interface  I  {  void go();  }      abstract class A implements I { }      class C extends A  {     void go(){ }     }  结果是什么?()   A、代码通过编译B、由于第1行的错误导致编译失败C、由于笫3行的错误导致编译失败D、由于第6行的错误导致编译失败

现有如下包结构:  com |-- x | |-- Alpha.class | | | |-- y | |-- Beta.class | |-- Gamma.class  和类:  class Test { Alpha a; Beta b; Gamma c; }  哪三个必须加入到类 Test 中,以使其通过编译?()A、package y;B、package com;C、import com.x.*;D、import com.x.y.*

现有:  class Dog{ }  class Harrier extends Dog  { }       class DogTest{   public  static void main (String  []  args) {      Dog dl=new Dog();      Harrier hl=new Harrier();      Dog d2=hl;   Harrier h2=  (Harrier) d2;      Harrier h3=d2;     }      }  下面哪一项是正确的?()    A、2个Dog对象被创建B、2个Harrier对象被创建C、3个Harrier对象被创建D、编译失败

在MCDU电子状态页报告里能查看故障()A、Class1Class3B、Class2Class3C、Class1Class2D、Class1,Class2Class3

现有: class TestApp{ public static void main (String[] args){ for (int i=0; iA、0123B、012456789C、0123456789D、012

Which of the following class addresses is reserved for multicast?()A、 Class AB、 Class BC、 Class CD、 Class D

现有:      1  Interface F{}  2  class A implements F{}      3  class B extends A{}      4  class C extends B{  5    public static void main(String[]  args){      6    B b=new B();  7    //inSert C0de here      8    }      9    } 下列哪行代码插入到第7行,将抛出java.lang.ClassCaseException异常()A、   A a=b;B、  F f=  (C)b;C、  F f=  (A)b;D、  B bb=  (B)(A)b;

现有:  class A  {public String name="a"}  class B extends A {public String name="b"}      执行如下代码后的结果是哪项?()      A a=new B();  System.out.println(a.name);     A、  aB、  bC、编译失败D、运行时抛出异常

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。

现有:      class TestA  {  public void start()  {  System.out.println("TestA");  }     }  public class TestB extends TestA  {  public void start()  {  System.out.println("TestB");  }     public static void main (string[]  args)  (     ((TestA)new TestB()).start();     )     }  运行结果是哪项?()     A、  TeStAB、  TeStBC、编译失败D、运行时抛出异常

单选题现有:  interface Data {public void load();}  abstract class Info {public abstract void load();}      下列类定义中正确使用Data和Info的是哪项?()A public class Employee implements Info extends Data { public void load(){/*dosomething*/}     }Bpublic class Employee extends Inf.implements Data{ public void load() {/*do something*/}     }Cpublic class Empl.yee implements Inf extends Data{ public void Data.1oad(){* do something*/}     public void load(){/*do something*/}     }Dpublic class Employee extends Inf implements Data  {  public void Data.1oad()  {/*do something*/)     public void info.1oad(){/*do something*/}    }

单选题现有:  1. interface Animal {  2. void eat();  3. }  4.  5. // insert code here  6.  7. public class HouseCat extends Feline {  8. public void eat() { }  9. }   和五个声明:  abstract class Feline implements Animal { }  abstract class Feline implements Animal { void eat(); }  abstract class Feline implements Animal { public void eat(); }  abstract class Feline implements Animal { public void eat() { } }  abstract class Feline implements Animal { abstract public void eat(); }  分别插入到第5行,有几个可以通过编译?()A0B1C2D3

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 Top  {  static int x=l;  public Top (inty)  {  x*=3;  }      }  class Middle extends Top {      public Middle()  {x+=1;  )  public  static void main (String  []  args)  {      Middle m = new Middle();      System. out .println (x);      }     }      结果为:()A1B2C3D编译失败

单选题现有:      class TestA  {  public void start()  {  System.out.println("TestA");  }     }  public class TestB extends TestA  {  public void start()  {  System.out.println("TestB");  }     public static void main (string[]  args)  (     ((TestA)new TestB()).start();     )     }  运行结果是哪项?()A  TeStAB  TeStBC编译失败D运行时抛出异常

多选题现有:  public  class  TestDemo{     private int X-2;      static int y=3;  public  void method(){      final int i=100;      int j  =10;     class Cinner {  public void mymethod(){      //Here     }     }     }     } 在Here处可以访问的变量是哪些?()AXByCjDi

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:  interface Animal {       void eat () ;       }       //insert code here       public class HouseCat extends Feline {       public void eat() { }       }  和五个申明  abstract class Feline implements Animal { }  abstract  class  Feline  implements  Animal  {  void eat () ;  }  abstract class Feline implements Animal { public void eat();}  abstract class Feline implements Animal { public void eat() {}  }  abstract class Feline implements Animal { abstract public void eat();} 结果为:()A1B2C3D4

单选题现有: class TestApp{ public static void main (String[] args){ for (int i=0; iA0123B012456789C0123456789D012