The illustration shows a code segment with the lines numbered from 25 through 56 and the annotations are as follows:

"strcpy(value, a);
 }
 //Uses cstring, cstddef, and cstdlib:"
" StringVar::StringVar(const StringVar& stringObject) 
: maxLength(stringObject.length( ))” annotated as "Copy constructor (discussed later in this chapter)."
“{
 value = new char[maxLength + 1];//+1 is for '\0'.
 strcpy(value, stringObject.value);
 }
 StringVar::~StringVar( )
 {"
 "delete [] value;" annotated as "Destructor".
“}
//Uses cstring:
 int StringVar::length( ) const
 {
 return strlen(value);
 }

 //Uses iostream:
 void StringVar::inputLine(istream& ins)
 {
 ins.getline(value, maxLength + 1);
 }

 //Uses iostream:
ostream& operator <<(ostream& outs, const StringVar& theString)
 {
outs << theString.value;
return outs;
}"