Answer:
Check the explanation
Explanation:
a) there is a need to create an allocated object of dynamic ability for the Timer class, and assign it to a pointer variable timePtr.
As we are going to create an object of timer class, so timePtr will be a pointer of type timer class. Hence, left side of the statement will be as follows.
Timer* timePtr
Now, to create an object in a dynamic way, we use new operator in C++. And at last, we need to call the constructor to create the object. So, the full statement will be as follows:
Timer* timePtr = new Timer (10, 20);
b)
//c++ code : a:
#include <iostream>
using namespace std;
class Timer
{
public:
int hr;
int minute;
Timer(int h,int min)
{
h=h+min/60;
min=min%60;
hr=h;
minute=min;
}
};
int main()
{
Timer *t=new Timer(10,20);
cout<<"Time : "<<t->hr<<" hr :"<<t->minute<<" min"<<endl;
return 0;
}
c)
//c++ code for b, c:
#include <iostream>
#include <stdlib.h>
#include <time.h>
using namespace std;
int* randfun_alloc(int n)
{
srand (time(NULL));
int *arr=new int[n];
for(int i=0;i<n;i++)
arr[i]=rand()%1000;
return arr;
}
int main()
{
int n;
cin>>n;
int *arr =randfun_alloc(n);
for(int i=0;i<n;i++)
cout<<arr[i]<<" ";
cout<<endl;
delete[] arr;//delete the allocated array
return 0;
}
Documents: bash Konsole File Edit View Bookmarks Settings Help raushan-HP-2000-Notebook-PC /Documents > g++ randarr.c
Something like a hard drive.
Answer:
7.0
Explanation:
i got it wrong to get the answer
<span>The c++ operator delete is used to destroy dynamic variables.</span>
