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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
go
B
编译失败
C
代码运行,无输出结果
D
运行时异常被抛出
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更多 “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 编译失败C 代码运行,无输出结果D 运行时异常被抛出” 相关考题
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阅读下面代码 public class Test implements Runnable { public void run(Thread t) { System.out.println("Running"); } public static void main(String[] args) { Thread tt=new Thread(new Test()); tt.start(); } } 代码运行的结果是A.将抛出一个异常B.没有输出并正常结束C.输出“Running”并正常结束D.程序第2行将出现一个编译错误
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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();
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下列程序的输出结果是______。 class T44 implements Runnable { public void run() { System.out.print in (Thread.currentThread ( ).getName ( ) + "运行" ); } } public class ex44 { public static void main(String[] args) { Thread t1 = new Thread(new T44(), "t1"); Thread t2 = new Thread(new T44 () , "t2"); t1 .setPriority(Thread. MAX_PRIORITY); t2.setPriority(Thread.MIN_PRIORITY); t2. start (); t1 .start (); } }A.t1 运行 t2 运行B.t2 运行 t1 运行C.t1 运行 t1 运行D.t2 运行 t2 运行
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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”.
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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
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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
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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
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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 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
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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
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
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 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
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
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 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
考题
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
mainB
编译失败C
代码运行,但没有输出D
main java.lang.RuntimeException:exception
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
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
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