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public class TestDemo{ private int x = 2; static int y = 3; public void method(){ final int i=100; int j = 10; class Cinner{ public void mymethod(){ //Here } } } } 在Here处可以访问的变量是哪些?()
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更多 “多选题public class TestDemo{ private int x = 2; static int y = 3; public void method(){ final int i=100; int j = 10; class Cinner{ public void mymethod(){ //Here } } } } 在Here处可以访问的变量是哪些?()AxByCiDj” 相关考题
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( 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
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( 35 )有如下程序:#include iostreamusing namespace std;Class B{public:B(int xx):x(xx) {++cout; x+=10;}virtual void show() const{coutcount ' _ ' xendl;}protected:static int count;private:int x;};class D:public B{public:D(int xx,int yy):B(xx),y(yy) {++count; y+=100;}virtual void show() const{coutcount ' _ ' yendl;}private:int y;};int B::count=0;int main(){B *ptr=new D(10,20);ptr-show();delete ptr;return 0;}运行时的输出结果是A ) 1_120B ) 2_120C ) 1_20D ) 2_20
考题
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
考题
有如下程序:includeusing namespace std;Class TestClass{private:int x,y;public:Te
有如下程序: #include<iostream> using namespace std; Class TestClass { private: int x,y; public: TestClass(int i,int j) { x=i; y=j; } void print() { cout<<“print1”<<endl; } void print()const { cout<<”prinA.printlB.print2C.printl print2D.程序编译时出错。
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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
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本题中,鼠标在窗口中单击一下,就在单击的位置生成一个小矩形,如果在小矩形上双击鼠标左键,则删除小矩形。 import java.awt.*; import java.awt.event.*; import javax swing.*; class MousePanel extends JPanel extends MouseMo- tionListener {public MousePanel {addMouseListener(new MouseAdapter {public void mousePressed(MouseEvent evt) {int X=evt.getX; int Y=evt.getY; current=find(x,y); if(current0) add(x,y); } public void mouseClicked(MouseEvent evt) {int X=evt.getX; int Y=evt.getY; if(evt.getClickCount=2) {remove(current); } } }); addMouseMotionListener(this); } public void paintComponent(Graphics g) {super.paintComponent; for(int i=0;insquares;i++) draw(g,i); } public int find(int X,int y) (for(int i=0;insquares;i++) if(squares[i].x-SQUARELENGTH/2= x X=squares[i].x+SQuARELENGTH/2 squares[i].Y-SQUARELENGTH/2 =Y y=squares[i].Y+SQUARELENGTH /2) return i ; return-1 ; } public void draw(Graphics g,int i) {g.drawRect(squares[i].X-SQUARE- LENGTH/2。 squares[i].Y-SQUARELENGTH/2, SQUARELENGTH, SQUARELENGTH); } public void add(int X,int Y) {if(nsquaresMAXNSQUARES) {squares[nsquares]=new Point(x,y); current=nsquares ; nsquares++; repaint; } } public void remove(int n) {if(n0 ‖ n=nsquares)return; Nsquares- -; squares[n]=squares[nsquares]; if(current= =n)current= -l; repaint; } public void mouseMoved(MouseEvent evt) {} public void mouseDragged(MouseEvent evt) {} private static final int SQUARELENGTH=10: private static final int MAXNSQUARES=100; private Point[]squares=new Point[MAX- NSQUARES]; private int nsquares=0; private int current=-l; } class MouseFrame. extends JFramc {public MouseFrame {setTitle("java3"); setSize(300,200); addWindowListener(new WindowAdapter {public void windowClosing(WindowEvent e) {System.exit(0); } }); Container contentPane=getContentPane; contentPane.add(MousePanel); } } public class java3 {public static void main(String[]args) {JFrame. frame=new MouseFrame; frame.show; } }
考题
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
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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
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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
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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
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有以下程序:#include <iostream>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;}void sample:: print(sample s){ cout<<"x="<<s. x<<",y="<<y<<end1;}int sample:: y=0;int main(){ sample s1(10); sample s2(20); sample:: print(s2); return 0;}程序运行后的输出结果是( )。A.x=10,y=20B.x=20,y=30C.x=30,y=20D.x=30,y=30
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下面程序段的输出结果为 package test; public class A { int x=20; static int y=6; public static void main(String args[]) { Class B b=new Class B(); b.go(10); System.out.println(”x=”+b.x); } } class Class B { int x; void go(int y) { ClassA a=new ClassA(); x=a.y; } }A.x=10B.x=20C.x=6D.编译不通过
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若有以下程序:includeusing namespace std;class A{private:inta;public:voidseta(in
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下面的例子中using System;class A{public static int X;static A(){X=B.Y+1;}}class B{public static int Y=A.X+1;static B(){}static void Main(){Console.WriteLine("X={0},Y={1}",A.X,B.Y);}}产生的输出结果是什么?
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若有以下程序:include using namespace std;class A{private:int a;public:void seta
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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
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public class ConstOver { public ConstOver (int x, int y, int z) { } } Which two overload the ConstOver constructor?() A、 ConstOver ( ) { }B、 Protected int ConstOver ( ) { }C、 Private ConstOver (int z, int y, byte x) { }D、 Public Object ConstOver (int x, int y, int z) { }E、 Public void ConstOver (byte x, byte y, byte z) { }
考题
Given: 1. public class ConstOver { 2. public constOver(int x, int y, int z) { 3. } 4. } Which two overload the ConstOver Constructor?()A、 ConstOver() {}B、 protected int ConstOver(){}C、 private ConstOver(int z, int y, byte x ) {}D、 public Object ConstOver(Int x, int y, int z) {}E、 pubic void ConstOver (byte x, byte y, byte z) {}
考题
public class MethodOver { private int x, y; private float z; public void setVar(int a, int b, float c){ x = a; y = b; z = c; } } Which two overload the setVar method?()A、 void setVar (int a, int b, float c){ x = a; y = b; z = c; }B、 public void setVar(int a, float c, int b) { setVar(a, b, c); }C、 public void setVar(int a, float c, int b) { this(a, b, c); }D、 public void setVar(int a, float b){ x = a; z = b; }E、 public void setVar(int ax, int by, float cz) { x = ax; y = by; z = cz; }
考题
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?()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 */ } }
考题
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 */ } }
考题
多选题现有: public class TestDemo{ private int X-2; static int y=3; public void method(){ final int i=100; int j =10; class Cinner { public void mymethod(){ //Here } } } } 在Here处可以访问的变量是哪些?()AXByCjDi
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