How to replace comma with a dot using java

Question

I am having a String str   12 12 I want to replace the   comma  with    Dot  for decimal number calculation  Currently i am trying this      if  str indexOf         -1           str replaceAll                  please help

User · Answer

For the current information you are giving  it will be enought with this simple regex to do the replacement   str replaceAll

User · Answer

str   str replace             should do the trick

User · Answer

Just use replace instead of replaceAll  which expects regex    str   str replace              or  str   str replace               replace takes as input either char or CharSequence  which is an interface implemented by String   Also note that you should reassign the result

User · Answer

if str indexOf       -1    str   str replaceAll               or even better  str   str replace

User · Answer

Your problem is not with the match   replacement  but that String is immutable  you need to assign the result   str   str replaceAll              or        it doesn t matter

User · Answer

Use this      String str     12 12  str   str replaceAll     d        d       1  2    System out println  str   str     - gt  str 12 12   hope help you

User · Answer

Just use str replace           - it is both fast and efficient when a single character is to be replaced  And if the comma doesn t exist  it does nothing

User · Answer

in the java src you can add a new tool like this   public static String remplaceVirguleParpoint String chaine           return chaine replaceAll

[java] How to replace comma (,) with a dot (.) using java

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