2. String #

Created Sunday 03 May 2020

• Collection of character
• present in iostream, or
• = does deep copy. Common sense
• Copy constructor does deep copy
• • is used for concatenation
• .substr(a, b) takes the substring from ‘a’ of length b.(incl a) ignores if b > length.
• .**substr(a) **from a to the end
• **s1.compare(s2) **- returns 0 if they are equal. positive if s1 comes before s2 in lexicographic order, else negative
• **s.length() **same as s.size()
• substrn(start, length)