Solved List to String

Hey community, I'm trying to send a player a list but I dislike how it's sent like this:

Code:

List: [item1,item2,item3]

Is there anyway to get it so it will send like this?:

Code:

List: item1, item2, item3

(The commas after the list item would be nice but aren't necessary).

 

Here you go. A simple little method to make your list look like you're asking. I wrote it without aid of the IDE so I may have written something wrong like wrong method name for the size of a list.

Code:

public static String listToString(List<String> list){
    StringBuilder sb = new StringBuilder();
    if (list != null && list.size() > 1){
        sb.append(list.get(0));
        for (int i = 1; i < list.size(); i++){
            sb.append(", " + list.get(i));
        }
    }else if(list != null && (list.size() == 1)){
        sb.append(list.get(0));
    }
    return sb.toString();
}

 

skore87
Thanks! That's perfect.

 

And a one-liner (Line one is to fill your array for the example so it doesn't count xD)

Code:

List<String> myStringList = Arrays.asList("item1", "item2", "item3");
 
String myString = myStringList.toString().substring(1, myStringList.toString().length() - 1);

If you use myStringList.toString() it will give you "[item1, item2, item3]" a comma seperated list with one space after the delimiter comma.

To get rid of those just use String.substring(int beginIndex, int endIndex) to extract the middle which is in this case start at index one which is the "i" and end at (end - 1) "3" (myStringList.toString().length() - 1)

 

or you could use regex

Code:

yourlist.toString().replaceAll("[\\['']|['\\]'']", "");

 

Haha nice! zack6849 ^.^ (I ignored the comma after toString() cause i know what you mean xD)

 

lycano oops, typo