Replacing last character in a String with java

Question

I have a string   String fieldName    A 2 B 3 and C 3      Now I want to replace last   with space   I have used    if  fieldName endsWith             fieldName replace                fieldName   fieldName replace  char   fieldName length   - 1    r       System out println  fieldName       fieldName     But still I am getting the same old string  How I can get this output instead   fieldName   A 2 B 3 and C 3

User · Answer

fieldName   fieldName substring 0  string length  -1

User · Answer

i want to replace last     with space   if  fieldName endsWith             fieldName   fieldName substring 0  fieldName length   - 1             If you want to remove the trailing comma  simply get rid of the

User · Answer

You can simply use    if fieldName endsWith            StringUtils chop fieldName       from commons-lang

User · Answer

Firstly Strings are immutable in java  you have to assign the result of the replace to a variable    fieldName   fieldName replace  watever         You can use also use regex as an option using String replaceAll regex  str    fieldName   fieldName replaceAll

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if  fieldName endsWith                 fieldName   fieldName substring 0  fieldName length  -1

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org apache commons lang3 StringUtils removeEnd   and org springframework util StringUtils trimTrailingCharacter   are your friends    StringUtils removeEnd null            null StringUtils removeEnd                    StringUtils removeEnd    null           StringUtils removeEnd  www domain com     com        www domain com  StringUtils removeEnd  www domain com     com        www domain  StringUtils removeEnd  www domain com    domain      www domain com  StringUtils removeEnd  abc             abc          Test     public void springStringUtils             String url    https   some site path             String result   org springframework util StringUtils trimTrailingCharacter url                 assertThat result  equalTo  https   some site path

User · Answer

Modify the code as fieldName   fieldName replace

User · Answer

Already  Abubakkar Rangara answered easy way to handle your problem  Alternative is    String   result   null  if fieldName endsWith                                    String   result   fieldName split           for int i   1  i  lt  result length - 1  i              result 0    result 0  concat result i

User · Answer

you can use regular expressions to identify the last comma     and replace it with     as follow   if fieldName endsWith                                    fieldName   fieldName replace

User · Answer

StringBuilder replace method can be used to replace the last character   StringBuilder replace startPosition  endPosition  newString   StringBuilder builder   new StringBuilder fieldName   builder replace builder length  -1  builder length         builder toString

User · Answer

Try this   s   s replaceAll

User · Answer

To get the required result you can do following   fieldName   fieldName trim    fieldName   fieldName substring 0 fieldName length   - 1

User · Answer

You can simply use substring   if fieldName endsWith           fieldName   fieldName substring 0 fieldName length   - 1       Make sure to reassign your field after performing substring as Strings are immutable in java

[java] Replacing last character in a String with java

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