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I'm trying to figure out how to replace a specific index in a arraylist of arraylists

The only stuff I've been able to find so far is how to just get the index with .get(x).get(y) I'm having no real luck with google at the moment, so I figured I'd finally make a post about it. Any help would be great, thanks in advance.

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Use set(int index, E o). See ArrayList#set –  peeskillet 13 mins ago
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3 Answers

up vote 2 down vote

You can do 

.get(x).set(y, value);
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I tried doing that and I was getting an array index out of bounds. I tried .get(0).set(3, Title); Timer being a String variable. the array is 2 x 27, so I'm not getting why it's saying out of bounds. I'll mess with it some more and get back to you. Maybe I made a mistake –  user2965892 7 mins ago
 
works great, that was just a mistake, 3> 2 duh. my brain is practically shut off at the moment. Thanks a lot :) –  user2965892 2 mins ago
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up vote 1 down vote

Something like this:

ArrayList<ArrayList<String>> s = . . .;
s.get(3).set(4, "new value");
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up vote 0 down vote

As @peeskillet suggest a best solution..

But check this core java code if it have some sense.

String arrayList[] = {....your array content...};

for (String token : arrayList) {
         token = token.replace("x", "replaceanythings");
         token = token.replace("y", "replaceanythings");
        }
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