#include <iostream> #include <cstring> #include <string> #include <istream> using namespace std; //Function prototypes int numVowels(char *str);...
#include <iostream>
#include <cstring>
#include <string>
#include <istream>
using namespace std;
//Function prototypes
int numVowels(char *str);
int numConsonants(char *str);
int main()
{
char string[100];
char inputChoice, choice[2];
int vowelTotal, consonantTotal;
//Input a string
cout << "Enter a string: " << endl;
cin.getline(string, 100);
do
{
//Displays the Menu
cout << " (A)
Count the number of vowels in the string"<<endl;
cout << " (B)
Count the number of Consonants in the string"<<endl;
cout << " (C)
Count both the vowels and consonants in the
string"<<endl;
cout << " (D)
Enter another string" << endl;
cout << " (E)
Exit program" << endl;
//Inputting choice
cout << "Enter choice:
";
cin.getline(choice, 2);
inputChoice = choice[0]; //a single
char variable will now equal the choice user pic from
c-string
switch (toupper(inputChoice)) //a
switch case, any user input char that is lower case will be now
uppercase
{
case
'A'://Function call to get number of Vowels
vowelTotal = numVowels(string);
cout << "Number of vowels is: " <<
vowelTotal << endl;
break;
case 'B':
//Function call to get number of consonants
consonantTotal = numConsonants(string);
//Outputting number of Consonants
cout << "Number of Consonants is: "
<< consonantTotal << endl;
break;
case 'C':
//Function call to get number of Vowels
vowelTotal = numVowels(string);
//Function call to get number of
consonants
consonantTotal = numConsonants(string);
//Outputting Both Vowels and Consonants
cout << "Number of vowels is: " <<
vowelTotal << endl;
cout << "Number of Consonants is:"
<< consonantTotal << endl;
break;
case 'D':
//Inputting another string
//Input a string
cout << "Enter a string: " <<
endl;
cin.getline(string, 100);
break;
case 'E':
exit(0);
break;
}//End of Switch
} while (inputChoice != 'E');//End Do while
}//End main
//Function Definitions
int numVowels(char *str)
{
int count = 0;//Local variable accumulates the total
number of vowels
while (*str != '\0')
{
if (*str == 'a' || *str == 'e' ||
*str == 'i' || *str == 'o' || *str == 'u')
count++;
str++;
}//End While
//Returns count value to function call
return count;
}
int numConsonants(char *str)
{
int count = 0;
//Checks for all characters in C-string
while (*str != '\0')
{ //Checks for consonants
if (*str != 'a' && *str !=
'e' && *str != 'i' && *str != 'o' && *str
!= 'u')
count++;
str++;
}//End While
//Returns count value to function call
return count;
}
the code works. the problem here is i dont want to have a set limit on the char array. (my cstring)..instead of just increasing the array size to 1000 and wasting space is there away where i can dynamically allocate an array with the char array. keep in mind "I DO NOT WANT TO JUST INCREASE THE ARRAY SIZE" thanks
Homework Answers
Please follow the changes (highlighted in below code)made according to your use.
#include <iostream>
#include <cstring>
#include <string>
#include <istream>
#include <stdlib.h>
using namespace std;
//Function prototypes
int numVowels(char *str);
int numConsonants(char *str);
int main()
{
/*Modify your char string[100] to char *string*/
char *string;
/*dynamic allocation of memory to string array*/
string=(char *) malloc(sizeof(char));
char inputChoice, choice[2];
int vowelTotal, consonantTotal;
/*New variables used*/
int i=0;
char ch;
//Input a string
cout << "Enter a string: " << endl;
/*Instead of using getline, read the char by char till newline
char \n and store in array string*/
//cin.getline(string, 100);
while((ch=getchar())!='\n') {
realloc(string, (sizeof(char)));
string[i++]=ch;
}
/*Every string end with null char '\0'*/
string[i] = '\0';
do
{
//Displays the Menu
cout << " (A) Count the number of vowels in the
string"<<endl;
cout << " (B) Count the number of Consonants in the
string"<<endl;
cout << " (C) Count both the vowels and consonants in the
string"<<endl;
cout << " (D) Enter another string" << endl;
cout << " (E) Exit program" << endl;
//Inputting choice
cout << "Enter choice: ";
cin.getline(choice, 2);
inputChoice = choice[0]; //a single char variable will now equal
the choice user pic from c-string
switch (toupper(inputChoice)) //a switch case, any user input char
that is lower case will be now uppercase
{
case 'A'://Function call to get number of Vowels
vowelTotal = numVowels(string);
cout << "Number of vowels is: " << vowelTotal <<
endl;
break;
case 'B': //Function call to get number of consonants
consonantTotal = numConsonants(string);
//Outputting number of Consonants
cout << "Number of Consonants is: " << consonantTotal
<< endl;
break;
case 'C': //Function call to get number of Vowels
vowelTotal = numVowels(string);
//Function call to get number of consonants
consonantTotal = numConsonants(string);
//Outputting Both Vowels and Consonants
cout << "Number of vowels is: " << vowelTotal <<
endl;
cout << "Number of Consonants is:" << consonantTotal
<< endl;
break;
case 'D': //Inputting another string
i=0;/*this i=0 will deallocates the string, and
removes the array contents*/
cout << "Enter a string: " << endl;
while((ch=getchar())!='\n') {
realloc(string, (sizeof(char)));
string[i++]=ch;
}
string[i] = '\0';
break;
case 'E': exit(0);
break;
}//End of Switch
} while (inputChoice != 'E');//End Do while
}//End main
//Function Definitions
int numVowels(char *str)
{
int count = 0;//Local variable accumulates the total number of
vowels
while (*str != '\0')
{
if (*str == 'a' || *str == 'e' || *str == 'i' || *str == 'o' ||
*str == 'u')
count++;
str++;
}//End While
//Returns count value to function call
return count;
}
int numConsonants(char *str)
{
int count = 0;
//Checks for all characters in C-string
while (*str != '\0')
{ //Checks for consonants
if (*str != 'a' && *str != 'e' && *str != 'i'
&& *str != 'o' && *str != 'u')
count++;
str++;
}//End While
//Returns count value to function call
return count;
}
Output:
Enter a string:
abdcdef
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: A
Number of vowels is: 2
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: B
Number of Consonants is: 5
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: C
Number of vowels is: 2
Number of Consonants is:5
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: D
Enter a string:
appleu
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: A
Number of vowels is: 3
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: C
Number of vowels is: 3
Number of Consonants is:3
(A) Count the number of vowels in the string
(B) Count the number of Consonants in the string
(C) Count both the vowels and consonants in the string
(D) Enter another string
(E) Exit program
Enter choice: E
Code pics:
![File Edit Selection View Go Debug Terminal Help capp-Visual Studio Code /*Every string end with nul 1 char 。 string[i] / 35 |](http://img.homeworklib.com/questions/de2f4210-511f-11eb-a7c0-bd1b23b783d2.png?x-oss-process=image/resize,w_560)
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#include <iostream>
#include <cstring>
#include <string>
#include <istream>
using namespace std;
//Function prototypes
int numVowels(char *str);...
#include <iostream> #include <cstring> #include <string> #include <istream> using namespace std; //Function prototypes int numVowels(char *str);...
#include <iostream> #include <cstring> #include <string> #include <istream> using namespace std; //Function prototypes int numVowels(char *str); int numConsonants(char *str); int main() { char string[100]; char inputChoice, choice[2]; int vowelTotal, consonantTotal; //Input a string cout << "Enter a string: " << endl; cin.getline(string, 100); do { //Displays the Menu cout << " (A) Count the number of vowels in the string"<<endl; cout << " (B) Count...
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#include <cstdlib>
#include <ostream>
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using namespace std;
typedef struct{
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#include <fstream>
#include <cstdlib>
#include <ostream>
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char title[250];
int year;
char rating[6];
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void printAll(movie movies[], int count);
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