Leetcode-8 (Java) String to Integer (atoi)

Implement atoi to convert a string to an integer.

Hint:carefully consider all possible input cases. If you want a challenge, please don't see below and ask yourself what is the possible input cases.

Notes:it is intended-problem to be specified vaguely (ie, no given input specs). You is responsible to gather all the input requirements up front.

Portal: https://leetcode.com/problems/string-to-integer-atoi/

Convert the string to Integer, and note the spaces and symbols.

 Public classSolution { Public intmyatoi (String str) {if(str = =NULL)            return0; STR= Str.trim ();//remove the spaces in front of the string        intLen =str.length (); if(len = = 0)            return0; CharSignal = ' + '; Doubleres = 0;  for(inti = 0; I < str.length (); i++)        {            CharCH =Str.charat (i); if(ch = = '-' | | ch = = ' + '))            {                if(I! = 0)                    return0; Else                {                    if(ch = = '-')) Signal= '-'; }            }            Else if(Ch >= ' 0 ' && ch <= ' 9 ') {res= res * + CH-' 0 '; }            Else                 Break; }        if(Signal = = '-')) Res= -Res; if(Res >integer.max_value)returnInteger.max_value; Else if(Res <integer.min_value)returnInteger.min_value; Else            return(int) Res; }    }

Leetcode-8 (Java) String to Integer (atoi)