How to realize string addition by Java
This article mainly explains "Java how to achieve string addition", the article explains the content is simple and clear, easy to learn and understand, now please follow the editor's ideas slowly in depth, together to study and learn "Java how to achieve string addition" bar!
Topic: the addition of two strings representing binary numbers
Train of thought: add up from the low position, every two into one:
For example: string a = "100", a [2] is "0";-record the rounding of the sum with a variable. > Language:cpp
Class Solution {public:string addBinary (string a, string b) {string s = ""; / / I the index value of string a, the index value of j string b int c = 0, I = a.size ()-1, j = b.size ()-1 strike / strings an and b are not traversed, or there is carry, continue to calculate while (I > = 0 | | j > = 0 | c = = 1) {/ / ternary operator: low sum c + = I > = 0? A [iMurt -] -'0': 0; c + = j > = 0? B [Jmurb -] -'0': 0 return return / result s = Korean (c% 2 +'0') + s beat / carry calculation c / = 2;} / / returns the result
Language:Python
Class Solution (object): def addBinary (self, a, b): ": type a: str: type b: str: rtype: str" if len (a) = 0: return bif len (b) = = 0: return aif a [- 1] = ='1' and b [- 1] = '1':return self.addBinary (self.addBinary (a [0:-1], b [0:-1])) '1') +' 0'if a [- 1] = ='0' and b [- 1] = '0':return self.addBinary (a [0:-1], b [0:-1]) +' 0'else:return self.addBinary (a [0:-1], b [0:-1]) +'1' thank you for your reading The above is the content of "how to achieve string addition in Java". After the study of this article, I believe you have a deeper understanding of how to achieve string addition in Java, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!
