网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

现有:  class ThreadBoth extends Threaa implements Runnable  {      public void run()  (System.out.print("hi");  }     public static voicl main (String  []  args)  {     Thread tl=new ThreadBoth():      Thread t2 = new Thread (tl):     tl.run():      t2.run():     }          结果为:()      

  • A、 hi hi
  • B、 hi
  • C、编译失败
  • D、运行时异常被抛出

参考答案

更多 “ 现有:  class ThreadBoth extends Threaa implements Runnable  {      public void run()  (System.out.print("hi");  }     public static voicl main (String  []  args)  {     Thread tl=new ThreadBoth():      Thread t2 = new Thread (tl):     tl.run():      t2.run():     }          结果为:()      A、 hi hiB、 hiC、编译失败D、运行时异常被抛出” 相关考题
考题 ( 24 )请阅读下面程序public class ThreadTest {public static void main ( String args[ ]){Thread t1 = new Thread ( new Hello ()):Thread t2 = new Thread ( new Hello ()):t l .start ():t2.start ();}}class Hello implements Runnable {int i ;public void run (){while ( true ) {System.out.println ( "Hello"+i++ ) ;if ( i=5 ) break :}}}该程序创建线程使用的方法是()A )继承 Thread 类B )实现 Runnable 接口C ) t l.start ()D ) t2.start ()

考题 通过实现Rmmable接口创建线程,请在下面横线处填写代码完成此程序。public class ThreadTest{public static void main(String args []){Thread testObj1 = new Thread (new Hello ());Thread testObj2 = new Thread (new Hello ());testObj 2.start ( );}}class Hello implements Runnable{int j;public void run(){System.out.println("Hello" + j ++);}}

考题 请阅读下面程序 public class ThreadTest{ public static void main(String args[]) ( Thread t1=new Thread(new Hello()); Thread t2=new Thread(new Hello()); t1.start(); t2.start(); } } class Hello implements Runnable { int i; public void run() { while(true) { System.out.prinfin("Hello"+i++); if(i=5) break; } } } 该程序创建线程使用的方法是A.继承Thread类B.实现Runnable接口C.t1.start()D.t2.start()

考题 阅读下面程序 public class Test implements Runnable{ public static void main(String[]args){ _______________________________________; t. start(); } public void mR(){ System. out. println("Hello!"); }} 在程序下画线处填入正确选项是A.Test t=flew Test()B.Thread t=new Thread();C.Thread t=new Thread(new Test());D.Test t=new Thread();

考题 在下面程序的下画线处应填入的选项是 public class Test______{ public static void main(String args[]) { Test t=new Test(); Thread tt=new Thread(t); tt.start(); } public void run() { for(int i=0;i<5;i++) System.out.println("i="+i); } }A.implements RunnableB.extends ThreadC.implements ThreadD.extends Runnable

考题 阅读下面程序 public class Test2 ______ { public static void main(String[] args) { Thread t=new Test2(); t.start(); } public void run() { System.out.println("How are you."); } } 程序中下画线处应填入的正确选项是A.implements ThreadB.extends RunnableC.implements RunnableD.extends Thread

考题 阅读下面程序 public class Test implements Runnable { public static void main(String[] args) { ______ t.start(); } public void run() { System.out.println("Hello!"); } } 程序中下画线处应填入的正确选项是A.Test t=new Test();B.Thread t=new Thread();C.Thread t=new Thread(new Test());D.Test t=new Thread();

考题 下列程序通过实现Runnable接口创建一个线程,选择正确的语句填入程序的横线处。 class MyRun implements Runnable { String str; MyRun(String s) { str = s; } public void run() System.out.println(str); } } public class ex40 { public static void main(String[] args) { String name = "实现阶段Runnable 接口"; MyRun my = new MyRun(name); Thread th = th. start ( ); } }A.new MyRun(my)B.new Thread()C.new Thread(my)D.Thread(my)

考题 请阅读下面程序,说明该程序创建线程使用的方法是( )。 public class ThreadTest { public static void main(String args[]) { Thread tl=new Thread(new HolloWorld); Thread t2=new Thread(new HolloWorld); tl.start; t2.Start; } } class HolloWorld implements Runnable { int i; public void run { while(true) { System.out.println("HolloWorld"+i++); if(i= =5)break; } } }A.继承Thread类B.实现Runnable接口C.tl.startD.t2.start

考题 ( 30 )在程序的下划线处应填入的选项是public class Test _________{public static void main(String args[]){Test t = new Test();Thread tt = new Thread(t);tt.start();}public void run(){for(int i=0;i5;i++){system.out.println( " i= " +i);}}}A ) implements RunnableB ) extends ThreadC ) implements ThreadD ) extends Runnable

考题 public class Threads3 implements Runnable {  public void run() {  System.out.print(”running”);  }  public static void main(String[] args) {  Thread t = new Thread(new Threads3());  t.run();  t.run();  t.start();  }  }  What is the result?() A、 Compilation fails.B、 An exception is thrown at runtime.C、 The code executes and prints “running”.D、 The code executes and prints “runningrunning”.E、 The code executes and prints “runningrunningrunning”.

考题 class MyThread extends Thread {  public void run() { System.out.println(“AAA”); }  public void run(Runnable r) { System.out.println(“BBB”); }  public static void main(String[] args) {  new Thread(new MyThread()).start();  }  }   What is the result?()  A、 AAAB、 BBBC、 Compilation fails.D、 The code runs with no output.

考题 现有:   class Thread2 implements Runnable {   void run() {   System.out.print("go ");   }   public static void main(String [] args) {   Thread2 t2 = new Thread2();   Thread t = new Thread(t2);   t.start();   }   }   结果为:()A、 goB、 编译失败C、 代码运行,无输出结果D、 运行时异常被抛出

考题 class ThreadBoth extends Thread implements Runnable {  public void run(){ System.out.print("hi "); }  public static void main(String [] args){  Thread t1 = new ThreadBoth();   Thread t2 = new Thread(t1);  t1.run();  t2.run();  }  }  结果为:() A、hiB、hi hiC、编译失败D、代码运行,但无输出结果

考题 class Work implements Runnable {  Thread other;   Work(Thread other) { this.other = other; }  public void run() {  try { other.join(); } catch (Exception e) { }  System.out.print("after join ");  } }  class Launch {  public static void main(String [] args) {  new Thread(new Work(Thread.currentThread())).start();  System.out.print("after start ");  } }  结果为:()A、after joinB、after startC、after join after startD、after start after join

考题 现有:   class ThreadExcept implements Runnable {   public void run() { throw new RuntimeException("exception "); }  public static void main(String [] args) {   new Thread(new ThreadExcept()).start();   try {   int x = Integer.parseInt(args[0]);   Thread.sleep(x);   System.out.print("main ");    } catch (Exception e) { }      }   }   和命令行:  java ThreadExcept 1000    哪一个是结果?() A、 mainB、 编译失败C、 代码运行,但没有输出D、 main java.lang.RuntimeException: exception

考题 class Order implements Runnable {    public void run ()  {  try { Thread.sleep (2000) ;  } catch (Exception e)    System.out.print("in") ;  public static void main (String [] args)  {    Thread t = new Thread (new Order ()) ;    t.start () ;  System.out.print ("pre ") ;  try { t.join () ;  } catch (Exception e)  { }    System.out.print ("post") ;   可产生哪两项结果?()  A、 pre in postB、 pre inC、 in post preD、 in pre postE、 pre post in

考题 public class Threads4 {  public static void main (String[] args) {  new Threads4().go();  }  public void go() {  Runnable r = new Runnable() { public void run() {  System.out.print(”foo”);  }  };  Thread t = new Thread(r);  t.start();  t.start();  }  }  What is the result?() A、 Compilation fails.B、 An exception is thrown at runtime.C、 The code executes normally and prints „foo”.D、 The code executes normally, but nothing is printed.

考题 class Thread2 implements Runnable {  void run() {  System.out.print("go ");  }  public static void main(String [] args) {  Thread2 t2 = new Thread2();  Thread t = new Thread(t2);  t.start();  }  }   结果为()A、goB、编译失败C、代码运行,无输出结果D、运行时异常被抛出

考题 单选题public class Threads3 implements Runnable {  public void run() {  System.out.print(”running”);  }  public static void main(String[] args) {  Thread t = new Thread(new Threads3());  t.run();  t.run();  t.start();  }  }  What is the result?()A  Compilation fails.B  An exception is thrown at runtime.C  The code executes and prints “running”.D  The code executes and prints “runningrunning”.E  The code executes and prints “runningrunningrunning”.

考题 单选题class MyThread extends Thread {  public void run() { System.out.println(“AAA”); }  public void run(Runnable r) { System.out.println(“BBB”); }  public static void main(String[] args) {  new Thread(new MyThread()).start();  }  }   What is the result?()A  AAAB  BBBC  Compilation fails.D  The code runs with no output.

考题 单选题现有:  class ThreadBoth extends Threaa implements Runnable  {      public void run()  (System.out.print("hi");  }     public static voicl main (String  []  args)  {     Thread tl=new ThreadBoth():      Thread t2 = new Thread (tl):     tl.run():      t2.run():     }          结果为:()A  hi hiB  hiC 编译失败D 运行时异常被抛出

考题 单选题class Thread2 implements Runnable {  void run() {  System.out.print("go ");  }  public static void main(String [] args) {  Thread2 t2 = new Thread2();  Thread t = new Thread(t2);  t.start();  }  }   结果为()A goB 编译失败C 代码运行,无输出结果D 运行时异常被抛出

考题 单选题现有:  class Thread2 implements Runnable  {      void run()  {      System.out.print ("go¨);      }      public static void main(String  []  args)  {        Thread2 t2=new Thread2();      Thread t=new Thread(t2);      t.start();      }      }      结果为:()A goB 运行时异常被抛出C 代码运行,无输出结果D 编译失败

考题 多选题class Order implements Runnable {  public void run() {  try { Thread.sleep(2000); } catch (Exception e) { }  System.out.print("in ");  }  public static void main(String [] args) {  Thread t = new Thread(new Order());  t.start();  System.out.print("pre ");  try { t.join(); } catch (Exception e) { }  System.out.print("post ");  } }  可产生哪两项结果?()Ain preBpre inCin pre postDpre in post

考题 单选题class ThreadBoth extends Thread implements Runnable {  public void run(){ System.out.print("hi "); }  public static void main(String [] args){  Thread t1 = new ThreadBoth();   Thread t2 = new Thread(t1);  t1.run();  t2.run();  }  }  结果为:()A hiB hi hiC 编译失败D 代码运行,但无输出结果

考题 单选题现有:   class ThreadExcept implements Runnable {   public void run() { throw new RuntimeException("exception "); }   public static void main(String [] args) {   new Thread(new ThreadExcept()).start();   try {   int x = Integer.parseInt(args[0]);   Thread.sleep(x);   System.out.print("main ");  } catch (Exception e) { }  }   }   和命令行:  java ThreadExcept 1000   哪一个是结果?()A  mainB  编译失败C  代码运行,但没有输出D  main java.lang.RuntimeException: exception