Strings in C++
Strings are character arrays whose last value is '\0', null character. You can define a string as : char str[] = {'h', 'e', 'y', '\0' } or as char str[] = "hey"; // str can be modified or as char * str = "hey"; // str cannot be modified, will cause segmentation error const char * str2 = "heyy"; // will not cause warning, still cannot modify or by using the string data type string s = "hey"; The string class, included as #include <string> provides various functions to perform string operations. Some of them are : strlen(str) -> length of str strcat(str1,str2) -> concatenate str2 at the end of str1 strcpy(str1,str2) -> copy str2 into str1 When you declare as char[int] then you cannot directly assign value using = rather you need to use strcpy