All of the assert statements are used appropriately.
Only the assert statement on line 31 is used appropriately.
The assert statements on lines 29 and 31 are used appropriately.
The assert statements on lines 26 and 29 are used appropriately.
The assert statements on lines 29 and 33 are used appropriately.
The assert statements on lines 29, 31, and 33 are used appropriately.
The assert statements on lines 26, 29, and 31 are used appropriately.
第1题:
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.7,6,5
C.5,6,7
D.7,5,6
第2题:
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.1,2,3
B.1,1,1
C.2,2,2
D.3,3,3
第3题:
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.1,2,3
B.1,1,1
C.2,2,2
D.3,3,3
第4题:
下列程序运行后的输出结果是( )。 #include<iostream.h> void fun(int,int,int*); void main() { int x,y,z; fun(5,6,&x); fun(7,x,&y); fun(x,y,&z); cout<<x<<","<<y<<","<<z<<end1; } void fun(int a,int b,int *c) { b+=a; *c=b-a; }
A.5, 5, 5
B.6, 6, 6
C.5, 6, 7
D.7, 7, 7
第5题:
第6题:
23.int z=5; 24. 25. public void stuff1(int x) { 26. assert (x> 0); 27. switch(x) { 28. case 2: x= 3; 29. default: assert false; } } 30. 31. private void stuff2(int y) { assert (y < 0); } 32. 33. private void stuff3() { assert (stuff4O); } 34. 35. private boolean stuff4() { z = 6; return false; } Which is true?()
第7题:
Given: 1. public class ConstOver { 2. public constOver(int x, int y, int z) { 3. } 4. } Which two overload the ConstOver Constructor?()
第8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?()
第9题:
void setVar (int a, int b, float c){ x = a; y = b; z = c; }
public void setVar(int a, float c, int b) { setVar(a, b, c); }
public void setVar(int a, float c, int b) { this(a, b, c); }
public void setVar(int a, float b){ x = a; z = b; }
public void setVar(int ax, int by, float cz) { x = ax; y = by; z = cz; }
第10题:
ConstOver ( ) { }
Protected int ConstOver ( ) { }
Private ConstOver (int z, int y, byte x) { }
Public Object ConstOver (int x, int y, int z) { }
Public void ConstOver (byte x, byte y, byte z) { }
第11题:
protected void change (int x){}
public void change(int x, int y){}
public void change (int x){}
public void change (String s){}
第12题:
第13题:
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.1,2,3
B.1,1,1
C.2,2,2
D.3,3,3
第14题:
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.1,2
B.3,4
C.2,3
D.5,5
第15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.2,3,4
C.2,2,2
D.4,3,2
第16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.2,3,4
C.2,2,2
D.4,3,2
第17题:
给定java代码如下所示,在A处新增下列()方法,是对cal方法的重载。public class Test { public void cal(int x, int y, int z) { } //A }
第18题:
public class ConstOver { public ConstOver (int x, int y, int z) { } } Which two overload the ConstOver constructor?()
第19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?()
第20题:
All of the assert statements are used appropriately.
Only the assert statement on line 31 is used appropriately.
The assert statements on lines 29 and 31 are used appropriately.
The assert statements on lines 26 and 29 are used appropriately.
The assert statements on lines 29 and 33 are used appropriately.
The assert statements on lines 29, 31, and 33 are used appropriately.
The assert statements on lines 26, 29, and 31 are used appropriately.
第21题:
The code runs with no output.
An exception is thrown at runtime.
Compilation fails because of an error in line 20.
Compilation fails because of an error in line 21.
Compilation fails because of an error in line 23.
Compilation fails because of an error in line 25.
第22题:
ConstOver() {}
protected int ConstOver(){}
private ConstOver(int z, int y, byte x ) {}
public Object ConstOver(Int x, int y, int z) {}
pubic void ConstOver (byte x, byte y, byte z) {}
第23题:
class A{}
class A { public A(){} }
class A { public A(int x){} }
class Z {} class A extends Z { void A(){} }
第24题:
public int cal(int x,int y,float z){return 0;}
public int cal(int x,int y,int z){return 0;}
public void cal(int x,int z){}
public viod cal(int z,int y,int x){}