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| Test 1 | |
| Name: Classy | Time: 20 - 30min |
| Create a class which contains - Name & age in the private bit, then make an array of 10 of these classes and have a function in the class which updates all of the info when asked. The user will be asked to update a record of their choice > 1 -10 and then will type in the values which will be transfered over to the class. This process will be repeated until the user wishes to exit, no menu is required. | |
| Test 2 | |
| Name: Pointy | Time: 20min |
|
First create 2 variables - a & b, assign them both a value, then output there respective memory locations and see if they have been stored 1 after the other. Then create an array of 10 integers and output each elements memory location and see if they are stored sequentially. Hint: There are many ways of doing this, but try to use pointers. Memory locations are given in Hexadecimal form, which means it will count up to 15 (0-15) then go back to 0 unlike our number system (0-9). Just see the last values on the returned address, forget the first few numbers and symbols. |
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| Answers | ||
| Answer below - drag the cursor over the white space to highlight the answer | ||
| Test 1 | Classy | Program , Source code |
#include <conio.h>
#include <iostream.h>
#include <string.h>
class My_class
{
private:
char Name[20];
int Age;
public:
void Set_values(char a[20],int b)
{
strcpy(Name,a);
Age=b;
}
};
void main()
{
My_class Profiles[10];
int Age,Record;
char Name[20],Key='n';
while((Key!='e')&&(Key!='E'))
{
cout << "Which record do you wish to enter 1-10: ";
cin >> Record;
cout << "Please enter person " << Record << " age: ";
cin >> Age;
cout << "Please enter person " << Record << " name: ";
cin >> Name;
Profiles[Record].Set_values(Name,Age);
cout << "\n\nDo you wish to (e)xit or enter a (n)ew record: ";
Key=getch();
while((Key!='e')&&(Key!='n')&&(Key!='N')&&(Key!='E'))
{
cout << "\nError: re-enter your choice - e or n: ";
Key=getch();
}
clrscr();
}
} | ||
| Test 2 | Pointy | Program , Source code |
#include <conio.h>
#include <iostream.h>
void main()
{
int a,b,c[10],*Pointer,i;
a=89;b=56;
cout << "a is at: " << &a << " b is at: " << &b << endl << endl;
Pointer = &c[0];
for(i=0;i<10;i++)
{
cout << "Element 0: " << Pointer << endl;
Pointer++;
}
getch();
} |
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