Search String in an ArrayList?

Discussion in 'Spigot Plugin Development' started by Snowmite, Apr 15, 2017.

  1. Snowmite

    Snowmite

    Question: Hello! I have a question, how would I search a string in an ArrayList? So if a player says /search [Keyword], it will look inside a custom ArrayList for the keywords. How would I do this?
     
    #1 Snowmite, Apr 15, 2017
  3. Choco

    Choco
    Moderator

    Code (Java):
    String value = yourList.stream().filter(s -> s.equalsIgnoreCase("theSearchArgument")).findFirst().orElse(null);
    Java 8 Stream API

    Or if you just want to know if it's there,
    Code (Java):
    yourList.contains("String");
     
    #2 Choco, Apr 15, 2017
    • Like Like x 1
    • Informative Informative x 1
  5. Trigary

    Trigary

    Do you want to know whether the list contains the specified element or at which (for example 1st, 4th, etc.) index is it or do you want to get another value based on what the keyword is?
     
    #3 Trigary, Apr 15, 2017
  7. Nosmakos

    Nosmakos

    Damn i need to read Java 8 new things, it has a lot of improvements i think.
    If i am not wrong, you could just get the args between 0 and 1 and check if it equalsignorecase to what you want.
     
    #4 Nosmakos, Apr 15, 2017
  9. MartinStone

    MartinStone

    ArrayLists have a .contains(Object) method that loops throught all content and check for .equals()
     
    #5 MartinStone, Apr 15, 2017
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