Remove part of string in Java

Question

I want to remove a part of string from one character  that is   Source string    manchester united  with nice players    Target string    manchester united

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Using StringBuilder  you can replace the following way   StringBuilder str   new StringBuilder  manchester united  with nice players     int startIdx   str indexOf       int endIdx   str indexOf       str replace   startIdx  endIdx

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Using StringUtils from commons lang  A null source string will return null  An empty      source string will return the empty string  A null remove string will return the source string  An empty      remove string will return the source string   String str   StringUtils remove  Test remove    remove    System out println str     result will be  Test

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If you just need to remove everything after the      try this  Does nothing if no parentheses   StringUtils substringBefore str          If there may be content after the end parentheses  try this   String toRemove   StringUtils substringBetween str             String result   StringUtils remove str        toRemove            To remove end spaces  use str trim       Apache StringUtils functions are null-  empty-  and no match- safe

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Use String Replace     http   www daniweb com software-development java threads 73139  Example   String original    manchester united  with nice players    String newString   original replace    with nice players

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Java program to remove a substring from a string public class RemoveSubString        public static void main String   args            String master    1 2 3 4 5           String to remove  3             String new string   master replace to remove                  the above line replaces the t remove string with blank string in master          System out println master           System out println new string

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You could use replace to fix your string  The following will return everything before a     and also strip all leading and trailing whitespace  If the string starts with a     it will just leave it as is    str    manchester united  with nice players   matched   str match             str replace matched 0  strip  if matched

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There are multiple ways to do it  If you have the string which you want to replace you can use the replace or replaceAll methods of the String class  If you are looking to replace a substring you can get the substring using the substring API   For example  String str    manchester united  with nice players    System out println str replace   with nice players          int index   str indexOf       System out println str substring 0  index      To replace content within      you can use   int startIndex   str indexOf       int endIndex   str indexOf       String replacement    I AM JUST A REPLACEMENT   String toBeReplaced   str substring startIndex   1  endIndex   System out println str replace toBeReplaced  replacement

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You should use the substring   method of String object   Here is an example code   Assumption  I am assuming here that you want to retrieve the string till the first parenthesis  String strTest    manchester united with nice players      Get the substring from the original string  with starting index 0  and ending index as position of th first parenthesis - 1    String strSub   strTest subString 0 strTest getIndex     -1

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I would at first split the original string into an array of String with a token      and the String at position 0 of the output array is what you would like to have   String   output   originalString split         String result   output 0

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Kotlin Solution  If you are removing a specific string from the end  use removeSuffix  Documentation   var text    one two  text   text removeSuffix   two       one    If the suffix does not exist in the string  it just returns the original  var text    one three  text   text removeSuffix   two       one three    If you want to remove after a character  use      Each results in  one   text   text replaceAfter          dropLast 1     You should check char is present before  dropLast     or text   text removeRange text indexOf       text length     or text   text replaceRange text indexOf       text length        You can also check out removePrefix  removeRange  removeSurrounding  and replaceAfterLast which are similar  The Full List is here   Documentation

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originalString replaceFirst                     https   ideone com jsZhSC replaceFirst   can be replaced by replaceAll

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String Replace  String s    manchester united  with nice players    s   s replace    with nice players           Edit   By Index  s   s substring 0  s indexOf      - 1

[java] Remove part of string in Java

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