Java Getting a substring from a string starting after a particular character

Question

I have a string    abc def ghfj doc   I would like to extract ghfj doc from this  i e  the substring after the last    or first   from right   Could someone please provide some help

User · Answer

This can also get the filename  import java nio file Paths  import java nio file Path  Path path   Paths get   abc def ghfj doc    System out println path getFileName   toString       Will print ghfj doc

User · Answer

You can use Apache commons   For substring after last occurrence use this method   And for substring after first occurrence equivalent method is here

User · Answer

With Guava do this   String id   abc def ghfj doc   String valIfSplitIsEmpty     return Iterables getLast Splitter on      split id  valIfSplitIsEmpty     Eventually configure the Splitter and use  Splitter on       trimResults    omitEmptyStrings         Also take a look into this article on guava Splitter and this article on guava Iterables

User · Answer

what have you tried  it s very simple   String s     abc def ghfj doc   s substring s lastIndexOf        1

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A very simple implementation with String split     String path     abc def ghfj doc      Split path into segments String segments     path split          Grab the last segment String document   segments segments length - 1

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java android in my case I want to change from    propic         png  anything after  propic  doesn t matter what before it          png  finally  I found the code in Class StringUtils this is the code      public static String substringAfter final String str  final String separator             if  isEmpty str                  return str                      if  separator    null                 return  quot  quot                       final int pos   str indexOf separator            if  pos    0                 return str                      return str substring pos   separator length

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String example    quot  abc def ghfj doc quot   System out println example substring example lastIndexOf  quot   quot     1

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In Kotlin you can use substringAfterLast  specifying a delimiter   val string     abc def ghfj doc  val result   url substringAfterLast      println result     It will show ghfj doc   From the doc      Returns a substring after the last occurrence of delimiter  If the string does not contain the delimiter  returns missingDelimiterValue which defaults to the original string

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Another way is to use this   String path     abc def ghfj doc  String fileName   StringUtils substringAfterLast path          If you pass null to this method it will return null  If there is no match with separator it will return empty string

User · Answer

I think that would be better if we use directly the split function   String toSplit     abc def ghfj doc    String result     toSplit split        String returnValue   result result length - 1     equals  ghfj doc

[java] Java: Getting a substring from a string starting after a particular character

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