阅读下列程序: Public class Test implements Runnable{ Private int x=0l Private int y=0; boolean flag=true; Public static void main(string[]args){ Test r=new Test; Thead tl=new Thead(r); Thead t2=new Thead(r); tl.start; t2.start; } Public void run{ While(flag){ x++; y++; system.out.println("("+x-","+y+")"); if(x=10) flag=false; } } } 下列对程序运行结果描述的选项中,正确的是( )。A.每行的(x,y)中,可能有x≠y;每一对(x,y)值都出现两次B.每行的(x,y)中,可能有x≠y;每一对(x,y)值仅出现 一次C.每行的(x,y)中,可能有x=y;每一对(x,y)值都出现两次D.每行的(x,y)中,可能有x=y;每一对(x,y)值都出现
阅读下列程序: Public class Test implements Runnable{ Private int x=0l Private int y=0; boolean flag=true; Public static void main(string[]args){ Test r=new Test; Thead tl=new Thead(r); Thead t2=new Thead(r); tl.start; t2.start; } Public void run{ While(flag){ x++; y++; system.out.println("("+x-","+y+")"); if(x>=10) flag=false; } } } 下列对程序运行结果描述的选项中,正确的是( )。
A.每行的(x,y)中,可能有x≠y;每一对(x,y)值都出现两次
B.每行的(x,y)中,可能有x≠y;每一对(x,y)值仅出现 一次
C.每行的(x,y)中,可能有x=y;每一对(x,y)值都出现两次
D.每行的(x,y)中,可能有x=y;每一对(x,y)值都出现
相关考题:
( 29 )有如下程序:#includeiostreamusing namespace std;class Part{public:Part(int x=0):val(x) {coutval;}~Part(){coutval;}private:int val;};class Whole{public:Whole(int x ,int y, int z=0):p2(x),p1(y),val(z){coutval;}~Whole(){coutval;}private:Part p1,p2;int val;};int main(){Whole obj(1,2,3);return 0;}程序的输出结果是A ) 123321B ) 213312C ) 213D ) 123123
( 31 )有如下程序#include iostreamusing namespace std;Class Base{public:Base(int x=0):valB(x) {coutvalB;}~Base() {coutvalB;}private:int valB;};class Derived:public Base{public:Derived(int x=0,int y=0):Base(x),valD(y){coutvalD;}~Derived() {coutvalD; }private:int valD;};int main(){Derived obj12(2,3);retuen 0;}运行时的输出结果是A ) 2332B ) 2323C ) 3232D ) 3223
有如下程序: include using namespace std; class Part{ public: 有如下程序: #include <iostream> using namespace std; class Part{ public: Part(int x=0):val(x) { cout<<val; } ~Part() { cout<<val; } private: int val; }; class Whole { public: Whole(int x, int y, int z=0):p2(x),p1 (y),val(z) { cout<<val; } ~whole() { cout<<val; private: Part p1,p2; int val; }; int main() { Whole obj (1,2,3); return 0; }程序的输出结果是A.123321B.213312C.213D.123123
执行下面程序段,屏幕上将输出( )。 public class Test { private int x=10,y=20; public Test (int x,int y) { System.out.println (x+this.x); System.out.println (y+y); } public static void main (String[] args) { Testt= new Test(30,50); } }A.无输出B.20 40C.40 100D.40 70
有如下类定义:class Point{public:Point(int xx=0,int yy=0):x(xx),y(yy) { }private:int x,y;};class Circle:public Point{public:Circle(int r):radius(r) { }private:int radius;};派生类Circle中数据成员的个数是( )。A、3B、1C、5D、2
下列程序的运行结果是【 】。 include class test { private: int num; public: tes 下列程序的运行结果是【 】。include <iostream. h>class test{private:int num;public:test()int TEST() {return num+100;}~test()};test::test(){num=0;}test::~test(){cout<<"Destructor is active"<<endl;}void main(){test x[3]cout<<x[1]. TEST()<<endl;}
完成下列类的构造函数,初始化语句为______。 include class Test { private: int x,y 完成下列类的构造函数,初始化语句为______。include<iostream.h>class Test{private:int x,y;public:void Test(int initx,int inity){______}void printx( ){cout<<x<<"-"<<y<<"="<<x-y;}};void main( ){Test x(300,200);x.printx( );}
下列程序的运行结果是 includeclass Location{private:int X.Y;public:void init(i 下列程序的运行结果是 #include<iostream.h> class Location{ private: int X.Y; public: void init(int=0,int=0); void valueX(int val){X=val;} int valueX( ){ return X;} void valueYA.5 0 6 4B.0 0 6 4C.5 0 6 2D.0 0 6 2
有如下程序:includeusing namespace std;class Part{public:Part(int x=0):val(x) {c 有如下程序: #include<iostream> using namespace std; class Part{ public: Part(int x=0):val(x) {cout<<val;} ~Part(){cout<<val;} private: int val; }; class Whole{ public: Whole(int x ,int y, int z=0):p2(x),p1(y),val(z){cout<<val;} ~Whole(){cout<<val;} private: Part p1,p2; int val; }; int main() Whole obj(1,2,3); return 0; } 程序的输出结果是( )。A.123321B.213312C.213D.123123
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
有以下程序:include using namespace std;class A{private: int x,y;public: void se 有以下程序: #include <iostream> using namespace std; class A { private: int x,y; public: void set (int i,int j) { x=i; y=j; } int get_y() { return y; } }; class box { private: int length,width; A label; public: void set(int 1,int w, int s,int p) { length=1; width=w; label.set(s,p); } int get_area() { return length*width; } }; int main() { box small; small.set(2,4,1,35); cout<<small.get_area()<<end1; return 0; } 运行后的输出结果是( )。A.8B.4C.35D.70
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
有如下程序: #jnCludeiostream using namespaCe std; Class Part{ publiC: Part(int x=0):val(X){Coutval;} ~Part{Coutval;} private: int val; t }; Class Whole{ publiC: Whole(int x,int Y,int z=0):p2(x),pl(y),val(z){Coutval;} ~Whole{eoutval;} private: Part pl,p2; int val; }; int main { Whole obj(1,2,3); return 0; } 执行这个程序的输出结果是( )。A.123321B.213312C.213D.123123
若有以下程序:include using namespace std;class Base{private: int a,b;public: Ba 若有以下程序: #include <iostream> using namespace std; class Base { private: int a,b; public: Base(int x, int y) { a=x; b=y; } void show() { cout<<a<<", "<<b<<end1; } }; class Derive : public Base { private: int c, d; public: Derive(int x, int y, int z,int m):Base(x,y) { c=z; d=m; } void show() { cout<<c<<", "<<d<<end1; } }; int main ( ) { Base b(50,50) ,*pb; Derive d(10,20,30,40); pb=d; pb->show {); return 0; }A.10,20B.30,40C.20,30D.50,50
有以下程序:includeusing namespace std;class sample{private:int x;static int y; 有以下程序: #include<iostrearn> using namespace std; class sample { private: int x; static int y; public: sample (int A) ; static void print (sample s); }; sample::sample(int A) { x=a; y+=x; }A.x=10,y=20B.x=20,y=30C.x=30,y=20D.x=30,y=30
若有以下程序:includeusing namespace std;class A{private:int a; public:void seta 若有以下程序: #include<iostream> using namespace std; class A { private: int a; public: void seta(int x) { a=x; } void showa() { cout<<a<<","; } }; class B { private: int b; public: void setb(int x) { b=x; } void showb() { cout<<b<<",”; } }; class C:pUblic A,private B { private: int c; public: void setc(int x,int y,int z) { c=z; seta(x); setb(y); } void showc() { showa(); showb(); cout<<c<<end1; } }; int main() { Cc; c.setc(1,2,3); c.showc(); retrun 0; } 程序执行后的输出结果是A.1,2,3B.1,1,1C.2,2,2D.3,3,3
如下程序执行后的输出结果是【】。include using namespace std; class Base { public: 如下程序执行后的输出结果是【 】。include <iostream>using namespace std;class Base{public:Base(int x,int y){a=x;b=y;}void Show(){cout<<"Base: "<<a<< ',' <<b<<" ";}private:int a,b;};class Derived : public Base{public:Derived(int x, int y, int z) : Base(x,y),c(z) { }void Show(){cout<<"Derived:"<<c<<end1;}private:int c;};int main(){Base b(100,100),*pb;Derived d(10,20,30);pb=b;pb->Show();pb=d;pb->Show();return 0;}
若有以下程序:includeusing namespace std;class A{private:inta;public:voidseta(in 若有以下程序: #include <iostream> using namespace std; class A { private: int a; public: void seta(int x) { a=x; } void showa() { cout<<a<<","; } }; class B { private: int b; public: void setb (int x) { b=x; } void showb() { cout<<b<<","; } }; class C :public A,private B { private: int c; public: void setc(int x, inc y, int z) { c=z; seta (x); setb (y); } void showc() { showa (); showb (); cout<<c<<end1; } }; int main () { C c; c. setc(1,2,3); c.showc(); return 0; } 程序执行后的输出结果是A.1,2,3B.1,1,1C.2,2,2D.3,3,3
若有以下程序:include using namespace std;class Base{private: inta,b;public: Bas 若有以下程序: #include <iostream> using namespace std; class Base { private: int a,b; public: Base(int x, int y) { a=x; b=y; } void disp () { cout<<a<<" "<<b<<end1; } }; class Derived : public Base { private: int c; int d; public: Derived(int x,int y, int z,int m) :Base(x,y) { c=z; d=m; } void disp () { cout<<c<<" "<<d<<end1; } }; int main() { Base b(5,5),*pb; Derived obj(1,2,3,4); pb=obj; pb->disp(); return 0; } 执行程序后的输出结果是( )。A.1,2B.3,4C.2,3D.5,5
若有以下程序:include using namespace std;class A{private:int a;public:void seta 若有以下程序:#include <iostream>using namespace std;class A{private: int a;public: void seta(int x) { a=x; } void showa() { cout<<a<<","; }};class B{private: int b;public: void setb(int x) { b=x; } void showb() { cout<<b<<","; }};class C: public A, private B{private: int c;public: void setc(int x, int y, int z) { c=z; seta(x); setb(y); } void showc() { showa(); showb(); cout<<c<<end1; }};int main(){ C c; c.setc(1,2,3); c.showc(); return 0;}程序执行后的输出结果是( )。A.1,2,3B.1,1,1C.2,2,2D.3,3,3
若有以下程序:include using namespace std;define PI 3.14class Point{private: in 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() { 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<<c1.area()<<end1; return 0; } 程序执行后的输出结果是( )。A.314B.157C.78.5D.153.86
有下列程序:includeusing namespace std;class TestClass{private:int x,y;public:Te 有下列程序: #include<iostream> using namespace std; class TestClass { private: int x,y; public: TestClass (int i,int j) { x=i; y=j; } void print() { cout<<"printl"<<endl; } voA.print1B.print2C.pfint1 print2D.程序编译时出错
有以下程序:include using namespace std;define PI 3.14class Point{ private:int 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; }A.314B.157C.78.5D.153.86
请找出下列程序中错误之处 ______。 include classA{private: intx1;protected: int 请找出下列程序中错误之处 ______。#include<iostream.h>class A{private:int x1;protected:int x2;public:int x3;};class B:public A{private:int y1;protected:int y2;public:int y3;void disp(){cout<<x1<<y1<<end1:} //Avoid set(int i) {x2=i;} //B};void main() {B bb;bb.x3=10; //Cbb.y3=10; //D}A.AB.BC.CD.D
若有以下程序:include using namespace std;class point{private: int x, y;public: 若有以下程序: #include <iostream> using namespace std; class point { private: int x, y; public: point ( ) { x=0; y=0; } void setpoint(int x1,int y1) { x=x1; y=y1;A.12,12B.5,5C.12,5D.5,12
public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?()A、 public class Circle implements Shape { private int radius; }B、 public abstract class Circle extends Shape { private int radius; }C、 public class Circle extends Shape { private int radius; public void draw(); }D、 public abstract class Circle implements Shape { private int radius; public void draw(); }E、 public class Circle extends Shape { private int radius;public void draw() {/* code here */} }F、 public abstract class Circle implements Shape { private int radius;public void draw() { / code here */ } }
多选题public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?()Apublic class Circle implements Shape { private int radius; }Bpublic abstract class Circle extends Shape { private int radius; }Cpublic class Circle extends Shape { private int radius; public void draw(); }Dpublic abstract class Circle implements Shape { private int radius; public void draw(); }Epublic class Circle extends Shape { private int radius;public void draw() {/* code here */} }Fpublic abstract class Circle implements Shape { private int radius;public void draw() { / code here */ } }