How to split a String without using an array? [duplicate]

Question

I'm trying to split a String.

I have been searching but I only found cases where split is used with an array, so for example if you have the string "i love stackoverflow" and use split , the output will be [i,love,stackoverflow]

Instead of that I have a string with this format "URL_cars_es" and I just want the es part of it, because I have multiple files into my database with different languages lets say I have "URL_cars_it" "URL_cars_nb" and so on. I just need to split and get only the nb,es,it so i can pass it to my StorageReference and get the different files

I am getting URL_cars_es by using below code

selecteditem =  adapterView.getItemAtPosition(i).toString();

and I also need to trim/split it to only es.

Will you always only want the last two characters of the string? You could use a substring function in this case. — Micha Wiedenmann
– Micha Wiedenmann, Commented Jan 31, 2018 at 14:14
You may also look for regular expressions and java.util.Pattern — Timothy Truckle
– Timothy Truckle, Commented Jan 31, 2018 at 14:17

Ravi · Accepted Answer · 2018-01-31 14:31:11Z

9

If you don't wanted to use array/split. Then you can use lastIndexOf (index of the last occurrence of given character) and then substring from that index position.

String s1   = "URL_cars_it";
int lastPos = s1.lastIndexOf('_'); // return the index of the last occurrence

s1 = s1.substring(lastPos + 1); // return `it`

edited Jan 31, 2018 at 14:31

answered Jan 31, 2018 at 14:15

Ravi

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6 Comments

Gastón Saillén Over a year ago

thanks, will check this as correct as you were the first one answering

Ravi Over a year ago

@IDroid let me know, if you have any specific requirement, where it doesn't fulfill as this is specific to your mentioned scenario.

Gastón Saillén Over a year ago

its ok, i was just needing this because i was making a spinner with different elements from firebase database, but i just realised that i cant get from the storage the Locale language or the language that people are using because im doing another app to manage how users are interacting with the app. So i was looking for a workaround to get the different user languages , thanks for the help

Ravi Over a year ago

@IDroid So, was it helpful ? or you have any other scenario ?

Gastón Saillén Over a year ago

it was really helpfull and solved my problem, now with this one line i can get different information from different languages of how users are interacting with the app, thanks

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PKlumpp · Accepted Answer · 2018-01-31 14:16:26Z

3

What about this:

String countryCode = es.split("_")[2] //only take the 3rd entry of the array

I do not have the split() implementation in my mind now, just guessing it should look like the above.

answered Jan 31, 2018 at 14:16

PKlumpp

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2 Comments

Michael Dodd Over a year ago

This is assuming the string always splits into 3 parts. If a different prefix is used this could produce an IndexOutOfBoundsException

PKlumpp Over a year ago

@MichaelDodd this is absolutely correct. But he stated that his String does always look like that.

Juan Carlos Mendoza · Accepted Answer · 2018-01-31 14:18:05Z

2

Another way is to remove URL_cars_ using the String::replace method:

String str = "URL_cars_es";

System.out.println(str.replace("URL_cars_", ""));

Output:

es

answered Jan 31, 2018 at 14:18

Juan Carlos Mendoza

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