Variable types
In the program, you can declare and use variables with the following data type:
bool - logical (values 0-false/1-true).
int is an integer.
double is a single number (floating point).
string is a string variable.
Example.
Declare a string type variable and write a few words into it.
string mystring;
mystring = "fragment1" + "fragment2";
mystring += "fragment3";