Strings in Functional Programming

The string is defined as the group of the characters, which includes the space. The string is known as the one-dimensional character array. The string always ended by the "\0" or the NULL character. String is known as the predefined class. Most of the programming languages like C, C++, Erlang, Java supports String.

The below table shows how the string "Java" will look in memory.

Creating a string in C++

The below program will show how to create the string in C++. C++ is known as the object-oriented programming language.

The output of the above program is shown below:

Today is: Holiday 

String in Erlang

The below code shows the creation of the string in Erlang. Erlang is known as the functional programming language.

The output of the above program is just like, as shown below:

"Today is Independence"

String operations in C++

Different languages support different methods in the strings. The below table shows the predefined string methods supported by the C++ are:

The below program shows how we can use the above methods in C++

Output of the above program will look like as shown below:

strcpy(st3, st1)   :  Today is 
strcat(st1, st2)   :  Today is Rakshabandhan 
strlen(st1)         :  19 

String operations in Erlang

String operations in Erlang are as shown below:

Below program shows how we can use the above methods in Erlang.

Output of the above program will look like as shown below:

"Today is Monday"