读程序,写结果(注意每一空对应一个cout输出结果)#includeusing namespace std;class aClass{public: aClass() { total++; } ~aClass() { total--; } int gettotal() { return total; }private: static int total;};int aClass::total=0;int main(){ aClass o1,o2,o3;cout<
举一反三
- 读程序,写结果(注意:一条输出语句对应一空)#includeusing namespace std;class aClass{public: aClass() { total++;} ~aClass() { total--;} int gettotal() { return total;}private: static int total;};int aClass::total=0;int main(){ aClass o1,o2,o3;cout<
- 写出下面程序的运行结果。 #include using namespace std; class aClass { public: aClass() { total++;} ~aClass() { total--;} int gettotal() { return total;} private: static int total; }; int aClass::total=0; int main() { aClass o1,o2,o3; cout
- 已定义类Aclass:class Aclass {private int x = 1;protected int y = 2;public int z = 3;public int sumA(){ return(x +y +z ); }}再通过继承与扩展定义子类Bclass:class Bclass extends Aclass {private A: s += b; B: s += x; C: s += z; D: s += y;
- 下列程序的输出结果为 (注意:必需和程序运行结果严格一致,包括大小写、空格和换行!)class Aclass { void go() { System.out.println("Aclass"); } } public class Bclass extends Aclass { void go() { System.out.println("Bclass"); } public static void main(String args[]){ Aclass a=new Aclass(); Aclass a1=new Bclass(); a.go(); a1.go(); } }
- 阅读以下程序,写出结果。class AClass{ void go(){ System.out.println("AClass 的go方法"); }}class BClass extends AClass{ void go(){ System.out.println("BClass 的go方法"); }}public class TestBClass{ public static void main(String[] args){ AClass a =new AClass(); BClass b=new BClass(); a.go(); b.go(); }}程序的输出结果为: