in C++ : Improve on these codes in Listing 1-1 using object. Listing 1-1. 1. #include 2. #include 3. using namespace std; 4. int main() 5. { 6. int decimalNum=0, octalNum[30], rem, i=0, len=0; 7. char hexDecNum[10]; 8. cout<<"Enter the Hexadecimal Number: "; 9. cin>>hexDecNum; 10. while(hexDecNum[i]!='\0') 11. { 12. len++; 13. i++; 14. } 15. len--; 16. i=0; 17. while(len>=0) 18. { 19. rem = hexDecNum[len]; 20. if(rem>=48 && rem<=57) a. rem = rem-48; 21. else if(rem>=65 && rem<=70) a. rem = rem-55; 22. else if(rem>=97 && rem<=102) a. rem = rem-87; 23. else 24. { a. cout<<"\nInvalid Hex Digit!"; b. cout<=0; i--) 39. cout<
in C++ :
Improve on these codes in Listing 1-1 using object.
Listing 1-1.
1. #include
2. #include
3. using namespace std;
4. int main()
5. {
6. int decimalNum=0, octalNum[30], rem, i=0, len=0;
7. char hexDecNum[10];
8. cout<<"Enter the Hexadecimal Number: ";
9. cin>>hexDecNum;
10. while(hexDecNum[i]!='\0')
11. {
12. len++;
13. i++;
14. }
15. len--;
16. i=0;
17. while(len>=0)
18. {
19. rem = hexDecNum[len];
20. if(rem>=48 && rem<=57) a. rem = rem-48;
21. else if(rem>=65 && rem<=70) a. rem = rem-55;
22. else if(rem>=97 && rem<=102) a. rem = rem-87;
23. else
24. {
a. cout<<"\nInvalid Hex Digit!";
b. cout<<endl;
c. return 0;
25. }
26. decimalNum = decimalNum + (rem*pow(16, i));
27. len--;
28. i++;
29. }
30. i=0;
31. while(decimalNum != 0)
32. {
33. octalNum[i] = decimalNum%8;
34. i++;
35. decimalNum = decimalNum/8;
36. }
37. cout<<"\nEquivalent Octal Value: ";
38. for(i=(i-1); i>=0; i--)
39. cout<<octalNum[i];
40. cout<<endl;
41. return 0;
42. }
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