A.inclined
B.declined
C.replied
D.applied
第1题:
下列程序的输出结果是【 】。
include<iostream. h>
class MyClass
{
public:
int number;
void set(int i);
};
int number=3;
void MyClass: :set (int i)
{
number=i;
}
void main( )
{
MyClass my1;
int number=10;
my1.set(5),
cout<<my1, number<<',';
my1.set(number);
cout<<my1.number<<',';
my1.set(: :number);
cout<<my1.number<<'.';
}
第2题:
publicclassSyncTest(privateintx;privateinty;privatesynchronizedvoidsetX(inti)(x=1;)privatesynchronizedvoidsetY(inti)(y=1;)publicvoidsetXY(int1)(setX(i);setY(i);)publicsynchronizedBooleancheck()(returnx!=y;))Underwhichconditionswillcheck()returntruewhencalledfromadifferentclass?
A.Check()canneverreturntrue.
B.Check()canreturntruewhensetXYiscalledbymultiplethreads.
C.Check()canreturntruewhenmultiplethreadscallsetXandsetYseparately.
D.Check()canonlyreturntrueifSyncTestischangedtoallowxandytobesetseparately.
第3题:
第4题:
publicclassSyncTest{privateintx;privateinty;publicsynchronizedvoidsetX(inti)(x=1;)publicsynchronizedvoidsetY(inti)(y=1;)publicsynchronizedvoidsetXY(int1)(setX(i);setY(i);)publicsynchronizedBooleancheck()(returnx!=y;)}Underwhichconditionswillcheck()returntruewhencalledfromadifferentclass?
A.Check()canneverreturntrue.
B.Check()canreturntruewhensetXYiscalledbymultiplethreads.
C.Check()canreturntruewhenmultiplethreadscallsetXandsetYseparately.
D.Check()canonlyreturntrueifSyncTestischangedtoallowxandytobesetseparately.
第5题:
类MyClass的定义如下: class MyClass { public: MyClass(){value=0;} SetVariable(int i){value=i;) private: int value; }; 则对下列语句序列正确的描述是( )。
A.MyClass*p,my;p=&my;
B.语句p=&my;是把对象my赋值给指针变量p
C.语句MyClass*p,my;会调用两次类MyClass的构造函数
D.对语句*p.SetV ariable(5)与语句my.SetVariable(5)等价
第6题:
苹果Pay、小米Pay和三星Pay使用哪种近距离通信技术?
A.RFID
B.声波
C.NFC
D.蓝牙