Strings in C++

Introduction to String programming in C++

When we declare an array we take the number to declare them but the string is the way to declare the array of characters. By using this we can store the string values inside them. A string is known as an array of characters. String literals are words surrounded by double quotation marks.

For example: "Welcome to Smart Code for You" is a string literal.

If we want to declare the string of 15 characters then we can declare like String abc[16]. A string ends with a null character, literally a '\0' character. There will be an extra character on the end of a string. It is like a period at the end of a sentence, it is not counted as a letter, but it still takes up space. 

In C++, strings are not a built-in data type, but rather a Standard Library facility. Strings can be declared in two main ways. One of these is as an array of characters and the other is as a pointer to some preassigned array.

List of different string programs:

• Write a C++ program to display a string entered by the user.
• Write a C++ program to read and display an entire line entered by the user.
• Write a C++ program to find the length of string.
• Write a C++ program to display string from backward.
• Write a C++ program to count number of words in the string.
• Write a C++ program to concatenate one string contents to another.
• Write a C++ program to compare two strings they are exactly equal or not.
• Write a C++ program to check a string is palindrome or not.
• Write a C++ program to find a sub-string within a string. If found display its starting position.
• Write a C++ program to reverse a string.
• Write a C++ program to convert a string in lowercase.
• Write a C++ program to convert a string in uppercase.

Thanks

Mukesh Rajput