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; }
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; }
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下面程序的执行结果为 ‘ #include"iostream" using namespace std; class A { int a; public: void Sera(int x){a=x;} void Display_a(){cout<<a<<endl;} }; class B { int b; public: void Setb(int x){ b=x;} void Dispaly_b() {cout<<b<<endl;} }; class C:public A,private B { private: int c; public: void Setc(int x,int y,int z) { c=z;Sera(x);Serb(y);} void Display_c(){cout<<c<<endl;} }; ① void main() ② { ③ C cc; ④ cc.Seta(1); ⑤ cc.Display_a(); ⑥ cc.Setc(2,2,3); ⑦ cc.Dispaly_b(); ⑧ cc.Display_c(); }A.输出为2 2 3B.有错误在第5行C.输出为1 2 3D.有错误在第7行
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
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
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;}
类Test定义如下,将下列哪个方法插入③行处是不合法的( )?① public class Test{② public float Method(float a,float B) { }③ ______④ }A.public float Method(float a,float b,float C) { }B.public float Method(float c,float d){ }C.public int Method(int a,int B) { }private float Method(int a,int b,int C) { }D.private float Method(int a,int b,int C) { }
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
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 } A、public int cal(int x,int y,float z){return 0;}B、public int cal(int x,int y,int z){return 0;}C、public void cal(int x,int z){}D、public viod cal(int z,int y,int x){}
The following methods are to be published as Web services to be invoked via SOAP messages and validated with a schema: public void myMethod(int x, float y); public void myMethod(int x); public void someOtherMethod(int x, float y); Which WSDL style should be used?()A、 RPC/literalB、 RPC/encodedC、 Document/encodedD、 Document/literalE、 Document/literal wrapped
Given: 1. public class Method Over { 2. public void set Var (int a, int b, float c) { 3. } 4. } Which two overload the set Var method()?A、 private void set Var(int a, float c, int b) {}B、 protected void set Var(int a, int b, float c) {}C、 public int set Var(int a, float c, int b) {return a:}D、 public int set Var(int a, int b, float c) {return a:}E、 protected float set Var(int a, int b, float c) {return c:}
class BaseClass{ private float x= 1.0f; protected void setVar (float f) {x = f;} } class SubClass extends BaseClass { private float x = 2.0f; //insert code here } Which two are valid examples of method overriding?() A、 Void setVar(float f) {x = f;}B、 Public void setVar(int f) {x = f;}C、 Public void setVar(float f) {x = f;}D、 Public double setVar(float f) {x = f;}E、 Public final void setVar(float f) {x = f;}F、 Protected float setVar() {x=3.0f; return 3.0f; }
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) { }
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) {}
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; }
public class MethodOver { public void setVar (int a, int b, float c) { } } Which two overload the setVar method?() A、 Private void setVar (int a, float c, int b) { }B、 Protected void setVar (int a, int b, float c) { }C、 Public int setVar (int a, float c, int b) (return a;)D、 Public int setVar (int a, int b, float c) (return a;)E、 Protected float setVar (int a, int b, float c) (return c;)
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 class MethodOver { public void setVar (int a, int b, float c) { } } Which two overload the setVar method?()APrivate void setVar (int a, float c, int b) { }BProtected void setVar (int a, int b, float c) { }CPublic int setVar (int a, float c, int b) (return a;)DPublic int setVar (int a, int b, float c) (return a;)EProtected float setVar (int a, int b, float c) (return c;)
多选题class BaseClass{ private float x= 1.0f; protected void setVar (float f) {x = f;} } class SubClass extends BaseClass { private float x = 2.0f; //insert code here 16. } Which two are valid examples of method overriding?()AVoid setVar(float f) {x = f;}BPublic void setVar(int f) {x = f;}CPublic void setVar(float f) {x = f;}DPublic double setVar(float f) {x = f;}EPublic final void setVar(float f) {x = f;}FProtected float setVar() {x=3.0f; return 3.0f; }
多选题public class ConstOver { public ConstOver (int x, int y, int z) { } } Which two overload the ConstOver constructor?()AConstOver ( ) { }BProtected int ConstOver ( ) { }CPrivate ConstOver (int z, int y, byte x) { }DPublic Object ConstOver (int x, int y, int z) { }EPublic void ConstOver (byte x, byte y, byte z) { }
多选题Given: 1. public class ConstOver { 2. public constOver(int x, int y, int z) { 3. } 4. } Which two overload the ConstOver Constructor?()AConstOver() {}Bprotected int ConstOver(){}Cprivate ConstOver(int z, int y, byte x ) {}Dpublic Object ConstOver(Int x, int y, int z) {}Epubic void ConstOver (byte x, byte y, byte z) {}
多选题给定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 }Apublic int cal(int x,int y,float z){return 0;}Bpublic int cal(int x,int y,int z){return 0;}Cpublic void cal(int x,int z){}Dpublic viod cal(int z,int y,int x){}
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 */ } }
多选题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?()Avoid setVar (int a, int b, float c){ x = a; y = b; z = c; }Bpublic void setVar(int a, float c, int b) { setVar(a, b, c); }Cpublic void setVar(int a, float c, int b) { this(a, b, c); }Dpublic void setVar(int a, float b){ x = a; z = b; }Epublic void setVar(int ax, int by, float cz) { x = ax; y = by; z = cz; }
多选题Given: 1. public class Method Over { 2. public void set Var (int a, int b, float c) { 3. } 4. } Which two overload the set Var method()?Aprivate void set Var(int a, float c, int b) {}Bprotected void set Var(int a, int b, float c) {}Cpublic int set Var(int a, float c, int b) {return a:}Dpublic int set Var(int a, int b, float c) {return a:}Eprotected float set Var(int a, int b, float c) {return c:}
多选题class BaseClass{ private float x= 1.0f; protected void setVar (float f) {x = f;} } class SubClass extends BaseClass { private float x = 2.0f; //insert code here } Which two are valid examples of method overriding?()AVoid setVar(float f) {x = f;}BPublic void setVar(int f) {x = f;}CPublic void setVar(float f) {x = f;}DPublic double setVar(float f) {x = f;}EPublic final void setVar(float f) {x = f;}FProtected float setVar() {x=3.0f; return 3.0f; }
单选题The following methods are to be published as Web services to be invoked via SOAP messages and validated with a schema: public void myMethod(int x, float y); public void myMethod(int x); public void someOtherMethod(int x, float y); Which WSDL style should be used?()A RPC/literalB RPC/encodedC Document/encodedD Document/literalE Document/literal wrapped