How to Remove first N Characters in a String in C++ - Step by Step Examples

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How to Remove first N Characters in a String in C++ ?

Answer

To remove the first N characters of a string in C++, you can use string.substr method starting from index N.

✐ Examples

1 Removing First 3 Characters from "Hello World" String

In this example,

We declare a string named str1 with a value of "Hello World".
We use the substr method starting from index 3 to remove the first 3 characters.
Finally, we print the modified string.

C++ Program

#include <iostream>
#include <string>

int main() {
    std::string str1 = "Hello World";
    str1 = str1.substr(3);
    std::cout << "Modified string is: " << str1;
    return 0;
}

Output

Modified string is: lo World

2 Removing First 2 Characters from "apple" String

In this example,

We declare a string named str2 with a value of "apple".
We use the substr method starting from index 2 to remove the first 2 characters.
Finally, we print the modified string.

C++ Program

#include <iostream>
#include <string>

int main() {
    std::string str2 = "apple";
    str2 = str2.substr(2);
    std::cout << "Modified string is: " << str2;
    return 0;
}

Output

Modified string is: ple

Summary

In this tutorial, we learned How to Remove first N Characters in a String in C++ language with well detailed examples.

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How to Remove first N Characters in a String in C++ - Step by Step Examples

How to Remove first N Characters in a String in C++ ?

Answer

✐ Examples

1 Removing First 3 Characters from "Hello World" String

C++ Program

Output

2 Removing First 2 Characters from "apple" String

C++ Program

Output

Summary

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