[Leedcode 65] Valid number

Source: Internet
Author: User

Validate if a given string is numeric.

Some Examples:
" 0.1 "=true
"1 a"=false

Note:it is intended for the problem statement to be ambiguous. You should gather all requirements up front before implementing one.

 Public classSolution { Public BooleanIsnumber (String s) {//". 1" true; //Regular Expressions: Refer to http://blog.csdn.net/sbitswc/article/details/32378587//* Repeat 0 or more times//+ Repeat one or more times//? Repeat 0 or one time         if(S.trim (). IsEmpty ())return false; String Regex= "[-+]? (\\d+\\.?| \\.\\d+) \\d* (e[-+]?\\d+)? "; if(S.trim (). Matches (regex))return true; Else              return false; }}

[Leedcode 65] Valid number

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