给定如下代码，下面可以作为该类的构造函数的是（）public class Test {} A: A.public void Test(){} B: B.public Test() {} C: C.public static Test(){} D: D.public static void Test(){}

main（）方法是Java应用程序的执行入口点，下列关于main方法头的叙述项，（）是正确的A. public static void main() B. public static void main(String [] args)C. public static int main(String [] args) D.public void main(String [] args) A: A B: B C: C D: D

Except __________, there are three public utilities. A: public water service B: public gas service C: public heat service D: public electricity service

Which two allow the class Thing to be instantiated using new Thing（）？ A:  public class Thing { } B:  public class Thing { public Thing（） {} } C:  public class Thing { public Thing（void） {} } D:  public class Thing { public Thing（String s） {} } E:  public class Thing { public void Thing（） {} public Thing（String s） {} }

阅读以下程序class A{protected: int a=0;public: A(){a=1;}};class B:virtual public A{public: B(){a++;}};class C:virtual public A{public: C(){a+=2;}};class D:public B,public C{public: void print(){ cout< A: 0 B: 1 C: 3 D: 4

_______ are similar to Bank holidays in England, which are established by law. A: Public Festivals B: Public celebrations C: Public holidays D: Public activities

() the truth, I don't like to be laughed at (). A: Tell; public B: To tell; in public C: Telling; in public D: I tell; the public

如下A类的定义中，不可以使用new A( )创建对象的是 A: public class A { int x; double d; } B: public class A { int x; double d; public A（）{ <br> } } C: public class A { int x; double d; public A（）{ x = 1; d = 0.5; } } D: public class A { int x; double d; public A（int x,double d）{ this.x = x;<br> this.d = d; } } E: public class A { int x; double d; public A（int x,double d）{ this.x = x;<br> this.d = d; } public A( ){ <br> } }

接口中的方法默认的修饰符为（） A: public static B: public static final C: public final D: public staic

public class Dog(){...}下列哪个选项可以是Dog类的构造方法 A: public Dog(){ } B: public void Dog(){ } C: public dog(){ } D: public void dog(){ }