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?()
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?()
相关考题:
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?()
Whichstatementsconcerningtherelationshipsbetweenthefollowingclassesaretrue?()classFoo{intnum;Bazcomp=newBaz();}classBar{booleanflag;}classBazextendsFoo{Barthing=newBar();doublelimit;} A.ABarisaBaz.B.AFoohasaBar.C.ABazisaFoo.D.AFooisaBaz.E.ABazhasaBar.
publicclassAlpha1{publicstaticvoidmain(String[]args){booleanflag;inti=0;do{flag=false;System.out.println(i++);flag=i10;continue;}while((flag)?true:false);}}Whatistheresult?() A.000000000B.0123456789C.Compilationfails.D.Thecoderunswithnooutput.E.Thecodeentersaninfiniteloop.F.Anexceptionisthrownatruntime.
下列能够判断Spring容器是否包含ID为proBean的Bean的代码为( )。 A.boolean flag = beanFactory.containsBean("proBean");B.PropertiesBean propertiesBean= (PropertiesBean)beanFactory.getBean("proBean");C.Class classType = beanFactory.getType("proBean");D.PropertiesBean propertiesBean= (PropertiesBean)beanFactory.getBean("proBean", PropertiesBean.class);
以下变量初始化语句中,正确的有 ()A.boolean flag = true;B.int i = 32;C.float r = 10.0;D.double pi = 3.1415926;E.int value = 32.0;
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