Here is a C++ program to remove space characters from a string. In this C++ program, we will remove all space characters from a string of sentence. We will not modify original string instead we will create a new string having all characters of input string except spaces.
For Example :Input : String With Some Space Characters Output : StringWithSomeSpaceCharacters
C++ Program to Remove Spaces from a String
In this program, we will first take a string input from user using cin and store it in character array input. We initialize two variable i and j to 0. Using a for loop, we will traverse input string from first character till last character and check If current character is a space character or not. It current character is not a space character then we copy it to output string otherwise skip it. After the end of for loop, we will add a null character ('\0') at the end of output string and print it on screen using cout.
#include <iostream>
#include <cstring>
using namespace std;
int main(){
char input[100], output[100];
int i, j;
cout << "Enter a string \n";
cin.getline(input, 500);
for(i = 0, j = 0; input[i] != '\0'; i++){
if(input[i] != ' '){
// If current character is not a space character,
// copy it to output String
output[j++] = input[i];
}
}
output[j] = '\0';
cout << "Input String: " << input << endl;
cout << "String without spaces : " << output;
return 0;
}
Output
Enter a string I love C++ programming Input String: I love C++ programming String without spaces : IloveC++programming
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