下面程序段的输出结果是 public class Test{ public static void main(String args[]){ int n=5,sum=O; while(n>0){ sum+=n; --n; } System.out.println("sum is "+Sum); } }
A.sum is 14
B.sum is 15
C.sum is 10
D.sum is 5
第1题:
下列程序的输出结果是( )。 public class Test { public static void main (String[] args) { int n=5,sum=0; while (n>0) { sum+=n; --n; } System.out.println("Sum is"+sum); } }
A.sum is 14
B.sum is 15
C.sum is 10
D.sum is 5
第2题:
有如下程序: #include <iostream> using namespace std; class Test { public: Test() {n+=2; } ~Test() {n-=3; } static int getNum() {return n; } private: static int n; }; int Test::n=1; int main() { Test* p=new Test; delete p; cout<<"n="<<Test::getNum()<<endl; return 0; } 执行该程序的输出结果是( )。
A.n=0
B.n=1
C.n=2
D.n=3
第3题:
第4题:
下面程序段中的错误语句是 ______。 class M{ int i; public: void ~AA(int); AA *p; void AA(); void AA(int x){i=x;}; };
A.AA *p;
B.void ~AA(int);
C.void AA(int);
D.void AA(int x){i=x;};
第5题:
有如下程序: #include <iostream> using namespace std; class Test { public: Test() {n+=2;} ~Test() {n-=3;} static int getNum(){retum n;} private: static int n; }; int Test:: n=1; int main() { Test*p=new Test; delete p; cout<<"n="<<Test:: getNum()<<end1; return 0; };执行后的输出结果是______.
A.n=0
B.n=1
C.n=2
D.n=3
第6题: