public void foo() { }
public int foo() { return 3; }
public Two foo() { return this; }
public One foo() { return this; }
public Object foo() { return this; }
第1题:

A.public class MinMax<?> {
B.public class MinMax<? extends Number> {
C.public class MinMax<N extends Object> {
D.public class MinMax<N extends Number> {
E.public class MinMax<? extends Object> {
F.public class MinMax<N extends Integer> {
第2题:

A.Foo { public int bar() { return 1; }
B.new Foo { public int bar() { return 1; }
C.new Foo() { public int bar() { return 1; }
D.new class Foo { public int bar() { return 1; }
第3题:
有下列程序:
include<iostream>
using namespace std;
class ONE
{
public:
virtual void f(){COUt<<"1";}
};
c1assTWO:public ONE
{
public:
TWO(){cout<<"2";}
};
class THREE:public TWO
{
pub
第4题:
class One { public One() { System.out.print(1); } } class Two extends One { public Two() { System.out.print(2); } } class Three extends Two { public Three() { System.out.print(3); } } public class Numbers{ public static void main( String[] argv) { new Three(); } } What is the result when this code is executed?()
第5题:
Which statements concerning the following code are true?() class a { public a() {} public a(int i) { this(); } } class b extends a { public boolean b(String msg) { return false; } } class c extends b { private c() { super(); } public c(String msg) { this(); } public c(int i) {} }
第6题:
10. interface Foo { int bar(); } 11. public class Sprite { 12. public int fubar( Foo foo) { return foo.bar(); } 13. public void testFoo() { 14. fubar( 15. // insert code here 16.); 17. } 18. } Which code, inserted at line 15, allows the class Sprite to compile?()
第7题:
public class X { public X aMethod() { return this;} } public class Y extends X { } Which two methods can be added to the definition of class Y?()
第8题:
Given: 10. class One { 11. void foo() { } 12. } 13. class Two extends One { 14. //insert method here 15. } Which three methods, inserted individually at line 14, will correctly complete class Two?()
第9题:
int foo() { /* more code here */ }
void foo() { /* more code here */ }
public void foo() { /* more code here */ }
private void foo() { /* more code here */ }
protected void foo() { /* more code here */ }
第10题:
1
3
123
321
The code rims with no output.
第11题:
int foo() { /* more code here */ }
void foo() { /* more code here */ }
public void foo() { /* more code here */ }
private void foo() { /* more code here */ }
protected void foo() { /* more code here */ }
第12题:
double getSalesAmount() { return 1230.45; }
public double getSalesAmount() { return 1230.45; }
private double getSalesAmount() { return 1230.45; }
protected double getSalesAmount() { return 1230.45; }
第13题:

A.double getSalesAmount() { return 1230.45; }
B.public double getSalesAmount() { return 1230.45; }
C.private double getSalesAmount() { return 1230.45; }
D.protected double getSalesAmount() { return 1230.45; }
第14题:
有如下程序:
#include<iostream>
using narnespace std;
class ONE{
int e;
public:
ONE():c(O){cout<<1;)
ONE(int n):c(13){cout<<2;}
};
class TWO{
ONE oriel;
ONE one2,
public:
TWO(int m):one2(m){cout<<3;}
};
int main(){
TWO t(4);
return O;
}
运行时的输出结果是
A.3
B.23
C.123
D.213
第15题:
类class one 在声明func 成员函数时发生错误,出错原因是【 】。
Class one
{
private:
int a;
public:
void func(two& )
};
class two
{
private:
int b;
friend void one: :func(two & );
};
void one: : func(two& r)
a=r.b;
}
第16题:
1. class BaseClass { 2. private float x = 1.of; 3. protected float getVar() { return x; } 4. } 5. class SubClass extends BaseClass { 6. private float x = 2.Of; 7. // insert code here 8. } Which two are valid examples of method overriding when inserted at line 7?()
第17题:
class One { void foo() {} } class Two extends One { //insert method here } Which three methods, inserted individually at line 14, will correctly complete class Two?()
第18题:
10. abstract public class Employee { 11. protected abstract double getSalesAmount(); 12. public double getCommision() { 13. return getSalesAmount() * 0.15; 14. } 15. } 16. class Sales extends Employee { 17. // insert method here 18. } Which two methods, inserted independently at line 17, correctly complete the Sales class?()
第19题:
class One { public One foo() { return this; } } class Two extends One { public One foo() { return this; } } class Three extends Two { // insert method here } Which two methods, inserted individually, correctly complete the Three class?()
第20题:
public void foo() { /* more code here */ }
private void foo() { /* more code here */ }
protected void foo() { /* more code here */ }
int foo() { /* more code here */ }
void foo() { /* more code here */ }
第21题:
The code will fail to compile.
The constructor in a that takes an int as an argument will never be called as a result of constructing an object of class b or c.
Class c has three constructors.
Objects of class b cannot be constructed.
At most one of the constructors of each class is called as a result of constructing an object of class c.
第22题:
public void aMethod() {}
private void aMethod() {}
public void aMethod(String s) {}
private Y aMethod() { return null; }
public X aMethod() { return new Y(); }
第23题:
public void foo() { }
public int foo() { return 3; }
public Two foo() { return this; }
public One foo() { return this; }
public Object foo() { return this; }
第24题:
Object o = pageContext.getAttribute(foo);
Object o = pageContext.findAttribute(foo);
Object o = pageContext.getAttribute(foo,PageContext.SESSION_SCOPE);
HttpSession s = pageContext.getSession();Object o = s.getAttribute(foo);