classOrderimplementsRunnable{publicvoidrun(){try{Thread.sleep(2000);}catch(Exceptione)System.out.print("in");publicstaticvoidmain(String[]args){Threadt=newThread(newOrder());t.start();System.out.print("pre");try{t.join();}catch(Exceptione){}System.out.pri

题目

classOrderimplementsRunnable{publicvoidrun(){try{Thread.sleep(2000);}catch(Exceptione)System.out.print("in");publicstaticvoidmain(String[]args){Threadt=newThread(newOrder());t.start();System.out.print("pre");try{t.join();}catch(Exceptione){}System.out.print("post");可产生哪两项结果?()

A.preinpost

B.prein

C.inpostpre

D.inprepost

E.prepostin


相似考题
参考答案和解析
参考答案:A, D
更多“classOrderimplementsRunnable{publicvoidrun(){try{Thread.sleep(2000);}catch(Exceptione)Syst ”相关问题
  • 第1题:

    classBirds{publicstaticvoidmain(String[]args){try{thrownewException();}catch(Exceptione){try{thrownewException();}catch(Exceptione2){System.out.print("inner");}System.out.print("middle");}System.out.print("outer");}}结果为:()

    A.inner

    B.innerouter

    C.middleouter

    D.innermiddleouter


    参考答案:D

  • 第2题:

    现有:classThreadExceptimplementsRunnable{publicvoidrun(){thrownewRuntimeException("exception");}publicstaticvoidmain(String[]args){newThread(newThreadExcept()).start();try{intx=Integer.parseInt(args[0]);Thread.sleep(x);System.out.print("main");}catch(Exceptione){}}}和命令行:javaThreadExcept1000哪一个是结果?()

    A.main

    B.编译失败

    C.代码运行,但没有输出

    D.mainjava.lang.RuntimeException:exception


    参考答案:D

  • 第3题:

    publicclassAextendsThread{A(){setDaemon(true);}publicvoidrun(){(newB()).start();try{Thread.sleep(60000);}catch(InterruptedExceptionx){}System.out.println(Adone”);}classBextendsThread{publicvoidrun(){try{Thread.sleep(60000);}catch(InterruptedExceptionx){}System.out.println(Bdone”);}}publicstaticvoidmain(String[]args){(newA()).start();}}Whatistheresult?()

    A.Adone

    B.Bdone

    C.AdoneBdone

    D.BdoneAdone

    E.Thereisnoexceptionthattheapplicationwillprintanything.

    F.Theapplicationoutputs“Adone”and“Bdone”,innoguaranteedorder.


    参考答案:B

  • 第4题:

    classWorkimplementsRunnable{Threadother;Work(Threadother){this.other=other;}publicvoidrun(){try{other.join();}catch(Exceptione){}System.out.print("afterjoin");}}classLaunch{publicstaticvoidmain(String[]args){newThread(newWork(Thread.currentThread())).start();System.out.print("afterstart");}}结果为:()

    A.afterjoin

    B.afterstart

    C.afterjoinafterstart

    D.afterstartafterjoin


    参考答案:D

  • 第5题:

    现有:

    classWaitingimplementsRunnable{

    booleanflag=false;

    publicsynchronizedvoidrun(){

    if(flag){

    flag=false;

    System.out.print("1");

    try{this.wait();)catch(Exceptione){}

    System.out.print("2");

    }

    else{

    flag=true;

    System.out.print("3");

    try{Thread.sleep(2000);}catch(Exceptione){}

    System.out.print("4");

    notify();

    }

    }

    publicstaticvoidmain(String[]args){

    Waitingw=newWaiting();

    newThread(w).start();

    newThread(w).start();

    }

    }

    以下哪两项是正确的?()


    参考答案:B, F