How do I remove the non-numeric character from a string in java

Question

I have a long string  What is the regular expression to split the numbers into the array

User · Answer

Simple way without using Regex   public static String getOnlyNumerics String str        if  str    null            return null            StringBuffer strBuff   new StringBuffer        char c      for  int i   0  i  lt  str length     i              c   str charAt i           if  Character isDigit c                 strBuff append c                       return strBuff toString

User · Answer

Another regex solution   string replace   D g         remove the non-Numeric   Similarly  you can  string replace   W g         remove the non-alphaNumeric   In RegEX  the symbol     would make the letter following it a template   w -- alphanumeric  and  W - Non-AlphaNumeric  negates when you capitalize the letter

User · Answer

String str   somestring   String   values   str split    D

User · Answer

Java 8 collection streams    StringBuilder sb   new StringBuilder    test chars   mapToObj i - gt   char  i  filter Character  isDigit  forEach sb  append   System out println sb toString

User · Answer

This works in Flex SDK 4 14 0  myString replace    0-9 amp  amp     g

User · Answer

You will want to use the String class  Split   method and pass in a regular expression of   D   which will match at least one non-number   myString split    D

User · Answer

One more approach for removing all non-numeric characters from a string   String newString   oldString replaceAll    0-9

User · Answer

Are you removing or splitting  This will remove all the non-numeric characters   myStr   myStr replaceAll       d

User · Answer

Previous answers will strip your decimal point  If you want to save your decimal  you might want to String str    quot My values are   900 00  700 00  650 50 quot    String   values   str split  quot     d    d  quot        split on wherever they are not digits except the     decimal point    values     quot 900 00 quot    quot 700 00 quot    quot 650 50 quot

User · Answer

you could use a recursive method like below    public static String getAllNumbersFromString String input            if  input    null    input length      0                return                       char c   input charAt input length   - 1           String newinput   input substring 0  input length   - 1                if  c  gt    0   amp  amp  c lt    9                 return getAllNumbersFromString newinput    c             else               return getAllNumbersFromString newinput

[java] How do I remove the non-numeric character from a string in java?

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