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)
public class TestOne implements Runnable { public static void main (String[] args) throws Exception { Thread t = new Thread(new TestOne()); t.start(); System.out.print(”Started”); t.join(); System.out.print(”Complete”); } public void run() { for (int i= 0; i< 4; i++) { System.out.print(i); } } } What can be a result?()
- A、 Compilation fails.
- B、 An exception is thrown at runtime.
- C、 The code executes and prints “StartedComplete”.
- D、 The code executes and prints “StartedComplete0123”.
- E、 The code executes and prints “Started0l23Complete”.
参考答案
更多 “ public class TestOne implements Runnable { public static void main (String[] args) throws Exception { Thread t = new Thread(new TestOne()); t.start(); System.out.print(”Started”); t.join(); System.out.print(”Complete”); } public void run() { for (int i= 0; i 4; i++) { System.out.print(i); } } } What can be a result?()A、 Compilation fails.B、 An exception is thrown at runtime.C、 The code executes and prints “StartedComplete”.D、 The code executes and prints “StartedComplete0123”.E、 The code executes and prints “Started0l23Complete”.” 相关考题
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
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
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
( 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
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.
考题
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.
考题
Runnable r = new Runnable() { public void run() { System.out.print(”Cat”); } }; Threadt=new Thread(r) { public void run() { System.out.print(”Dog”); } }; t.start(); What is the result?() A、 CatB、 DogC、 Compilation fails.D、 The code runs with no output.E、 An exception is thrown at runtime.
考题
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、 mainB、 编译失败C、 代码运行,但没有输出D、 main java.lang.RuntimeException:exception
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
1. class MyThread implements Runnable { 2. public void run() { 3. System.out.print("go "); 4. } 5. 6. public static void main(String [] args) { 7. // insert code here 8. t.start(); 9. } 10. } 和如下四句: Thread t = new MyThread(); MyThread t = new MyThread(); Thread t = new Thread(new Thread()); Thread t = new Thread(new MyThread()); 分别插入到第5行,有几个可以通过编译?() A、0B、1C、2D、3
考题
class Waiting implements Runnable { boolean flag = false; public synchronized void run() { if (flag) { flag = false; System.out.print("1 "); try { this.wait(); } catch (Exception e) { } System.out.print("2 "); } else { flag = true; System.out.print("3 "); try { Thread.sleep(2000); } catch (Exception e) { } System.out.print("4 "); notify(); } } public static void main(String [] args) { Waiting w = new Waiting(); new Thread(w).start(); new Thread(w).start (); } } 以下哪两项是正确的?() A、代码输出 1 3 4B、代码输出 3 4 1C、代码输出 1 2 3 4D、代码不会完成
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 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
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
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Runnable r = new Runnable() { public void run() { System.out.print(”Cat”); } }; Threadt=new Thread(r) { public void run() { System.out.print(”Dog”); } }; t.start(); What is the result?()A
CatB
DogC
Compilation fails.D
The code runs with no output.E
An exception is thrown at runtime.
考题
单选题public class TestOne implements Runnable { public static void main (String[] args) throws Exception { Thread t = new Thread(new TestOne()); t.start(); System.out.print(”Started”); t.join(); System.out.print(”Complete”); } public void run() { for (int i= 0; i 4; i++) { System.out.print(i); } } } What can be a result?()A
Compilation fails.B
An exception is thrown at runtime.C
The code executes and prints “StartedComplete”.D
The code executes and prints “StartedComplete0123”.E
The code executes and prints “Started0l23Complete”.
考题
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.
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.
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
热门标签
最新试卷