C++ delete first character of string: In the previous article, we have discussed C++ Program to Count Zeros, Positive and Negative Numbers. In this article, we will see C++ Program to Remove all Non Alphabet Characters from a String.
C++ Program to Remove all Non Alphabet Characters from a String
- Write a C++ program to remove all non alphabet characters from string.
Remove non alphabetic characters python: To delete all non alphabet characters from a string, first of all we will ask user to enter a string and store it in a character array. Then using a for loop, we will traverse input string from first character till last character and check for any non alphabet character. If we found a non alphabet character then we will delete it from input string.
Finally, we will print modified output string on screen using cout.
For Example :
Input : 53^appl*e Output : apple Input : 123abcd_45 Output : abcd
Algorithm to Delete non Alphabet characters from String
Let “inputString” be the string entered by user of length N.
- Initialize two variables i and j to 0 and -1 respectively.
- Using a loop, traverse the inputString from index i=0 to i=N-1.
- For every character inputString[i],check if it is an alphabet character. If true then copy it at inputString[j] and increment j otherwise continue.
- After the end of for loop, set inputString[j] = ‘\0’. Now output string is from index 0 to j.
C++ Program to Remove all characters from a string except Alphabet
#include <iostream>
using namespace std;
int main() {
char inputString[200];
int i, j;
cout << "Enter a string\n";
cin.getline(inputString, 200);
for(j = -1, i = 0; inputString[i] != '\0'; i++) {
if((inputString[i]>='a' && inputString[i]<='z') ||
(inputString[i]>='A' && inputString[i]<='Z')) {
inputString[++j] = inputString[i];
}
}
inputString[j] = '\0';
cout << "Output : " << inputString;
return 0;
}
Output
Enter a string age#76jhg!& Output : agejhg
Want to get a good grip on all concepts of C++ programming language? Just click on Important C++ Programs with Solutions and kickstart your learnings with coding.
