单选题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

题目
单选题
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

 main

B

 编译失败

C

 代码运行,但没有输出

D

 main java.lang.RuntimeException:exception


相似考题
参考答案和解析
正确答案: C
解析: 暂无解析
更多“单选题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”相关问题
  • 第1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();


    正确答案:C

  • 第2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;i<5;i++){

    system.out.println( " i= " +i);

    }

    }

    }

    A ) implements Runnable

    B ) extends Thread

    C ) implements Thread

    D ) extends Runnable


    正确答案:A

  • 第3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、 AAA
    • B、 BBB
    • C、 Compilation fails.
    • D、 The code runs with no output.

    正确答案:A

  • 第4题:

    public class Foo implements Runnable (  public void run (Thread t) {  system.out.printIn(“Running.”);  }  public static void main (String[] args)  {  new thread (new Foo()).start();  } )   What is the result?()      

    • A、 An exception is thrown.
    • B、 The program exists without printing anything.
    • C、 An error at line 1 causes compilation to fail.
    • D、 An error at line 2 causes the compilation to fail.
    • E、 “Running” is printed and the program exits.

    正确答案:D

  • 第5题:

    public class Threads2 implements Runnable {  public void nun() {  System.out.println(”run.”);  throw new RuntimeException(”Problem”);  }  public static void main(String[] args) {  Thread t = new Thread(new Threads2());  t.start();  System.out.println(”End of method.”);  }  }  Which two can be results?()

    • A、 java.lang.RuntimeException: Problem
    • B、 run.    java.lang.RuntimeException: Problem
    • C、 End of method.    java.lang.RuntimeException: Problem
    • D、 End of method.      run.      java.lang.RuntimeException: Problem
    • E、 run.    java.lang.RuntimeException: Problem     End of method.

    正确答案:D,E

  • 第6题:

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

    正确答案:D

  • 第7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 join
    • B、after start
    • C、after join after start
    • D、after start after join

    正确答案:D

  • 第8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.

    正确答案:B

  • 第9题:

    单选题
    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 join

    B

    after start

    C

    after join after start

    D

    after start after join


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    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


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    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.


    正确答案: D
    解析: 暂无解析

  • 第12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?()
    A

    in pre

    B

    pre in

    C

    in pre post

    D

    pre in post


    正确答案: B,D
    解析: 暂无解析

  • 第13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.start

    D.t2.start


    正确答案:B
    B。【解析】本题考查线程的创建。在Java中,创建线程有两种方法:①通过实现Runnable接口创建线程。Runnable接口中只定义了一个run方法作为线程体。②通过继承Thread类创建线程,Thread类本身实现了Runnable接口。创建的新的线程不会自动运行,必须调用start方法才能运行。本题中HolloWorld类实现了Runnable接口。

  • 第14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”.

    正确答案:E

  • 第15题:

    public class Threads5 {  public static void main (String[] args) {  new Thread(new Runnable() {  public void run() {  System.out.print(”bar”);  } }).start();  }  }  What is the result?() 

    • A、 Compilation fails.
    • B、 An exception is thrown at runtime.
    • C、 The code executes normally and prints “bar”.
    • D、 The code executes normally, but nothing prints.

    正确答案:C

  • 第16题:

    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

    正确答案:C

  • 第17题:

    public class A extends Thread {  A() {  setDaemon(true);  }  public void run() {  (new B()).start();  try {  Thread.sleep(60000);  } catch (InterruptedException x) {}  System.out.println(“A done”);  }  class B extends Thread {  public void run() {  try {  Thread.sleep(60000);  } catch (InterruptedException x) {}  System.out.println(“B done”);  }  }  public static void main(String[] args) {  (new A()).start();  }  }   What is the result?()  

    • A、 A done
    • B、 B done
    • C、 A done B done
    • D、 B done A done
    • E、 There is no exception that the application will print anything.
    • F、 The application outputs “A done” and “B done”, in no guaranteed order.

    正确答案:B

  • 第18题:

    5. class Order2 implements Runnable {  6. public void run() {  7. for(int x = 0; x 〈 4; x++) {  8. try { Thread.sleep(100); } catch (Exception e) { }  9. System.out.print("r");  10. } }  11. public static void main(String [] args) {  12. Thread t = new Thread(new Order2());  13. t.start();  14. for(int x = 0; x 〈 4; x++) {  15. // insert code here  16. System.out.print("m");  17. } } }  哪一个插入到第15行,最有可能产生输出 rmrmrmrm ?()  

    • A、Thread.sleep(1);
    • B、Thread.sleep(100);
    • C、Thread.sleep(1000);
    • D、try { Thread.sleep(100); } catch (Exception e) { }

    正确答案:D

  • 第19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 post
    • B、 pre in
    • C、 in post pre
    • D、 in pre post
    • E、 pre post in

    正确答案:A,D

  • 第20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”.


    正确答案: D
    解析: 暂无解析

  • 第21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

     AAA

    B

     BBB

    C

     Compilation fails.

    D

     The code runs with no output.


    正确答案: B
    解析: 暂无解析

  • 第22题:

    多选题
    public class Threads2 implements Runnable {  public void nun() {  System.out.println(”run.”);  throw new RuntimeException(”Problem”);  }  public static void main(String[] args) {  Thread t = new Thread(new Threads2());  t.start();  System.out.println(”End of method.”);  }  }  Which two can be results?()
    A

    java.lang.RuntimeException: Problem

    B

    run.    java.lang.RuntimeException: Problem

    C

    End of method.    java.lang.RuntimeException: Problem

    D

    End of method.      run.      java.lang.RuntimeException: Problem

    E

    run.    java.lang.RuntimeException: Problem     End of method.


    正确答案: C,A
    解析: 暂无解析

  • 第23题:

    单选题
    public class A extends Thread {  A() {  setDaemon(true);  }  public void run() {  (new B()).start();  try {  Thread.sleep(60000);  } catch (InterruptedException x) {}  System.out.println(“A done”);  }  class B extends Thread {  public void run() {  try {  Thread.sleep(60000);  } catch (InterruptedException x) {}  System.out.println(“B done”);  }  }  public static void main(String[] args) {  (new A()).start();  }  }   What is the result?()
    A

     A done

    B

     B done

    C

     A done B done

    D

     B done A done

    E

     There is no exception that the application will print anything.

    F

     The application outputs “A done” and “B done”, in no guaranteed order.


    正确答案: D
    解析: 暂无解析

  • 第24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

     main

    B

     编译失败

    C

     代码运行,但没有输出

    D

     main java.lang.RuntimeException: exception


    正确答案: B
    解析: 暂无解析