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)
6、在JSP中,给定以下JSP代码片段,运行结果是()。 <% int x = 5; %> <%!int x = 7;%> <%!int getX() { return x; }%> <% out.print("X1=" + x); %> <% out.print("X2=" + getX()); %>
A.X1=5 X2=7
B.X1=5 X2=5
C.X1=7 X2=7
D.X1=7 X2=5
参考答案和解析
X1=5;X2=7
更多 “6、在JSP中,给定以下JSP代码片段,运行结果是()。 <% int x = 5; %> <%!int x = 7;%> <%!int getX() { return x; }%> <% out.print("X1=" + x); %> <% out.print("X2=" + getX()); %>A.X1=5 X2=7B.X1=5 X2=5C.X1=7 X2=7D.X1=7 X2=5” 相关考题
考题
( 33 )下面程序中对一维坐标点类 Point 进行运算符重载#includeusing namespace std;class point {public:point ( int vaI ) {x=val;}point & operator++ () {x++;retum*this;}print operator++ ( int ) {point ld=*this,++ ( *this ) ;retum old;}int GetX () const {retum x;}private:int x;};int main (){point a ( 10 ) ;cout ( ++a ) .GetX () ;coutA++.GETX () ;retum () ;}编译和运行情况是A )运行时输出 1011B )运行时输出 1111C )运行时输出 1112D )编译有错
考题
有如下程序:includeusing namespace std;class Base{int x;public:Base(int n=0):x(n
有如下程序: #include<iostream> using namespace std; class Base{ int x; public: Base(int n=0):x(n){cout<<n;} int getX( )const{return x;} }; class Derived:public Base{ int y; public: Derived(int m,int n):y(m),Base(n){tout<<m;} Derived(int m):y(m){cout<<m;} }; int main( ){ Derived dl(3),d2(5,7); return 0; } 程序的输出结果是A.375B.357C.0375D.0357
考题
下面程序中对一维坐标点类Point进行运算符重载 include using namespace std;
下面程序中对一维坐标点类Point进行运算符重载 #include <iostream> using namespace std; class Point { public: Point(int val) {x=val;} Point operator++() {x++; return *this; } Point operator++(int) {Point ld = *this; ++(*this); return old;} int GetX() const {return x;} private: int x; }; int main() { Point a(10); cout << (++a).GetX(); cout << a++.GetX(); return 0; }编译和运行情况是A.运行时输出1011B.运行时输出1111C.运行时输出1112D.编译有错
考题
若有以下程序:includeusingnamespacestd;classA{private:int x; public:int x;void s
若有以下程序: #include<iostream> usingnamespacestd; classA { private: int x; public: int x; void setx(int i) { x=i; } int getx() { return x; } }; class B:public A { private: int m; public: int p; void setvalue (int a,int b,int C) { setx(A) ; z=b; m=c; } void display() { cout<<getx()<<","<<z<<","<<m<<end1; } }; int main() { B obj; obj.setvalue(2,3,4); obj.display(); return 0; } 程序运行以后的输出结果是A.产生语法错误B.2,3,4C.2,2,2D.4,3,2
考题
有以下程序: include using namespace std; class Point' { public: void SetPoint(
有以下程序: #include <iostream> using namespace std; class Point' { public: void SetPoint(int x,int y); void Move(int xOff,int yOff); int GetX() { return X; } int GetY() { return Y; } private: int X,Y; }; void Point::SetPoint(int x, int y) { X=x; Y=y; } void Point: :Move(int xOff, int yOff) X+=xOff; Y+=yOff; } int main () { Point p1; p1.SetPoint(1,2); p1.Move (5, 6); cout<<"Point1 is ("<<p1.GetX()<<','<<p1.GetY()<<")"<<end1; return 0; } 执行后的输出结果是( )。A.Point1 is (6,8)B.Point1 is (1,2)C.Point1 is (5,6)D.Point1 is (4,4)
考题
执行下列代码后,输出的结果为( )。 class Base { int x = 30; void setX( ) {x=1O;} } class SubClass extends Base { int x=40; void setX ( ) {x=20;} int getX( ) {return super. x; } } public class Test { public static void main(String[ ] args) { SubClass sub=new SubClass( ); sub. setX( ); System. out. println(sub, getX( ) ); } }A.10B.20C.30D.40
考题
有以下程序:includeusingnamespacestd;definePI3.14classPoint{private: intx,y;pub
有以下程序: #include <iostream> using namespace std; #define PI 3.14 class Point { private: int x,y; public: Point(int a,int b) { x=a; y=b; } int getx() { return x; } int gety() { return y; } }; class Circle : public Point { private: int r; public: Circle(int a,int b,int c):Point(a,b) { r=c; } int getr() { return r; } double area() { return PI*r*r; } }; int main() { Circle c1(5,7,10); cout<<cl.area()<<endl; return 0; } 程序执行后的输出结果是A.314B.157C.78.5D.153.86
考题
类A定义如下: class A { private int x=10; int getx() { return x;} } class B extends A { private int x=15; //需要覆盖getx()方法 } 在下述方法中可以在类B中覆盖getx()方法的是 ( )A.int getx(){…}B.int getx(float f){…}C.float getx(){…}D.double getx(float f){…}
考题
若有以下程序:include using namespace std;class A{private:int x;public:int z;voi
若有以下程序:#include <iostream>using namespace std;class A{private: int x;public: int z; void setx(int i) { x=i; } int getx() { return x; }};class B: public A{private: int m;public: int p; void setvalue(int a, int b, int c) { setx(a); z=b; m=c; } void display() { cout<<getx()<<","<<z<<","<<m<<end1; }};int main(){ B obj; obj.setvalue(2,3,4); obj.display(); return 0;程序运行以后的输出结果是( )A.产生语法错误B.2,3,4C.2,2,2D.4,3,2
考题
执行下列程序 int fun(int x1,int x2){ int x; x1>x2 ?(x=3):(x=4); return x+x1; } void main(){ cout<<fun(7,8); } 后输出结果是 ______。A.9B.10C.11D.12
考题
有如下类定义: class Test { private int x; public int y; public void setX (int m) {x=m;} public int getX( ) {return x;} }现用Test t=new Text();生成一个对象t,则如下语句中,错误的是( )。A.t.x=10;B.t.y=10;C.t. setX(10);D.int m=t.getX( );
考题
有以下程序:includeusing namespace std;definePl 3.14Class Point{private:int x,y
有以下程序: #include<iostream> using namespace std; #definePl 3.14 Class Point {private: int x,y; public: Point(int a,intB) {X=a; y:b;} int getx() <return x;} int gety() {return y;}}; class Circle:public Point {priA.314B.157C.78.5D.153.86
考题
有如下程序: include using namespace std; class Base{ int x; pu
有如下程序: #include<iostream> using namespace std; class Base{ int x; public: Base(int n=0):x(n){cout<<n;) int getX()const{return x;} }; class Derived:public Base{ int y; public: Derived(int m,int n):y(m,)Base(n){cout<<m;} Derived(int m):y(m){cout<<m;} }; int main(){ Derived d1(3),d2(5,7) return 0; }运行时的输出结果是A.375B.357C.375D.357
考题
若有以下程序:include using namespace std;class A{private: int x;protected: int
若有以下程序: #include <iostream> using namespace std; class A { private: int x; protected: int y; public: int z; void setx(int i) { x=i; } int getx () { return x; }; class B : protected A { public: void setvalue(int a, int b, int c) { setx (a); y=b; z=c; } void display() { cout<<getx ( ) <<", "<<y<<", "<<z<<", "<<end1; } }; int main () { B obj; obj.setvalue(5, 6, 7); obj.display ( ); return 0; } 程序运行后的输出结果是( )。A.产生语法错误B.7,6,5C.5,6,7D.7,5,6
考题
若有以下程序:include using namespace std;class Base{ int x;protected: int y;pub
若有以下程序: #include <iostream> using namespace std; class Base { int x; protected: int y; public: int z; void setx(int i) { x=i; } int getx ( ) { return x; } }; class Inherit : private Base { private: int m; public: int p; void setvalue(int a,int b,int c, int d) { setx(a) ; y=b; z=c; m=d; } void display() { cout<<getx ()<<", "<<y<<", "<<z<<", "<<m<<end1; } }; int main() { Inherit A; A.setvalue(1,2,3,4); A.display(); return 0; } 程序运行后的输出结果是( )。A.1,2,3,4B.产生语法错误C.4,3,2,1D.2,3,4,5
考题
若有以下程序:include using namespaces std;class A{public: A (){} A (int i) {x1=
若有以下程序: #include <iostream> using namespaces std; class A { public: A (){} A (int i) { x1=i; } void dispa() { cout<<"xl="<<xl<<" , "; } private: int x1; }; class B : public A { public: B (){} B (int i):A(i+10) { x2=i; } void dispb() { dispa (); cout <<"x2="<<x2<<end1; } private: int x2; }; int main () { B b(2); b.dispb (): return 0; } 程序运行后的输出结果是( )。A.x1=10,x2=2B.x1=12,x2=10C.x1=12,x2=2D.x1=2,x2=2
考题
若有以下程序: #include 〈iostream〉 using namespace std; class A { private: int x; public: int z; void setx(int i) { x=i; } int getx () { return x; } }; class B : public A { private: int m; public: int p; void setvalue(int a,int b, int C) { setx (A) ; z=b; m=c; } void display() { cout〈〈getx()〈〈","〈〈z〈〈","〈〈m〈〈end1; } }; int main ( ) { B obj; obj.setvalue(2,3,4); obj.display(); return 0; } 程序运行以后的输出结果是( )。A.产生语法错误B.2,3,4C.2,2,2D.4,3,2
考题
运行以下的程序代码,结果是()。includeusing namespace std;intmain(){int x=5;int *q
运行以下的程序代码,结果是( )。 #include<iostream> using namespace std; intmain() { int x=5; int *q=x; int y=x; y++; tout<<(*q)++<<end1; return 0; }A.5B.6C.7D.8
考题
下列程序段执行后,x5的结果是______。 public class ex42 { public static void main(String[] args) { int xl = 8; int x2 = 12; int x3=7; int x4; int x5; x4 = x1 > x2 ? x1 : x2+ x1; x5 = x4 > x3 ? x4 : x3; System.out.println(x5); } }A.11B.20C.10D.12
考题
若有以下程序:includeusing namespaces std;class A{public:A(){}A(int i){x1=i; } v
若有以下程序: #include<iOStream> using namespaces std; class A { public: A(){} A(int i) { x1=i; } void dispa() { cout<<"X1="<<x1<<",": } private; int x1; }; class B:public A { public: B(){} B(int i):A(i+10) { x2=i; } void dispb() { dispa(); cout<<"x2="<<x2<<end1; } private: int x2; }; . int main() { B b(2); b.dispb() return 0; } 程序运行后的输出结果是( )。A.x1=10,x2=2B.x1=12,x2=10C.x1=12,x2=2D.x1=2,x2=2
考题
若有以下程序:include using namespace std;class Base{private: int x;protected: i
若有以下程序: #include <iostream> using namespace std; class Base { private: int x; protected: int y; public: int z; void setx(int i) { x=i; int getx () { return x; } }A.1,2,3,4B.产生语法错误C.4,3,2,1D.2,3,4,5
考题
执行下列程序后的输出结果是( ) int fun(int x1,int x2) { int x;x1x2?(x=3):(x=4);return(x+x1); } main() { printf("%d\n",fun( 7,8));}A.9B.10C.11D.12
考题
若有以下程序:include using namespace std;define PI 3.14class Point {private: i
若有以下程序: #include <iostream> using namespace std; #define PI 3.14 class Point { private: int x,y; public: Point(int a,int B) { x=a; y=b; } int getx() { return x; } int gety() { reurn y; } }; class Circle: public Point { private: int r; public: Circle(int a,int b.int C) :Point(a,B) r=c; int getr() { return r; } double area() { return PI*r*r; } }; int main() { Circle cl(5,7,10); cout<<c 1 .area()<<end1; return 0; } 程序执行后的输出结果是A.314B.157C.78.5D.153.86
考题
若有以下程序:includeusing namespace std;class A{private:int x;public:int z;void
若有以下程序:#include<iostream>using namespace std;class A {private: int x;public: int z; void setx(int i) { x=i; } int getx () { return x; }}:class B : public A{private: int m;public: int p; void setvalue(int a, int b, int c) { setx(a) ; z=b; m=c; } void display{) { cout<<getx ()<<", "<<z<<", "<<m<<end1; }};int main(){ B obj; obj. setvalue(2,3,4); obj.display(); return 0;} 程序运行以后的输出结果是A.产生语法错误B.2,3,4C.2,2,2D.4,3,2
考题
现有: class TestFoo f int x; String y; int getX() { return x; } String getY() {return y; } void setX (int x) { int Z=7: this.x=x; } 可以添加多少个修饰符来封装此类?() A、5B、4C、3D、2
考题
单选题现有: Public/project]class TestFoo { int x; String y; int getX() { return x; } (4,5,6是方法) String getY() { return y; } void setX(int x) { int z = 7; this.x = x; } } Private代表属性封装可以添加多少个修饰符来封装此类?()A
2B
3C
4D
5
考题
单选题现有: class TestFoo f int x; String y; int getX() { return x; } String getY() {return y; } void setX (int x) { int Z=7: this.x=x; } 可以添加多少个修饰符来封装此类?()A
5B
4C
3D
2
考题
单选题有以下程序:#includestruct S{int a;int *b;};main(){ int x1[] = {3,4},x2[] = {6,7}; struct S x[] = {1,x1,2,x2}; printf(%d,%d,*x[0].b,*x[1].b);}程序的运行结果是( )。A
1,2B
3,6C
4,7D
变量的地址值
热门标签
最新试卷