Adding one arraylist to another

Question

Here are my two Arraylists and how do I add one to the other

private ArrayList<String>  myStringList= new ArrayList<String>();
private ArrayList<String>  newStringList= new ArrayList<String>();

I would like to add all the strings which are in myStringList to newStringList.

Can anyone help me with this ?

Possible duplicate of Concatenate multiple arraylists references — JanTheGun
– JanTheGun, Commented Mar 2, 2016 at 11:26
did you just ask this duplicate question to answer it for yourself? — SomeJavaGuy
– SomeJavaGuy, Commented Mar 2, 2016 at 11:27
@Kevin. Not really :) but found lately the mistake I have done and finally answered my own question here so that someone might go through it. — coder
– coder, Commented Mar 2, 2016 at 11:28
@coder ok, it just looks confusing since the question and the answer are just 1 minute apart from each other — SomeJavaGuy
– SomeJavaGuy, Commented Mar 2, 2016 at 11:30

Elliott Frisch · Accepted Answer · 2016-03-02 11:18:39Z

4

You can use the constructor which takes a collection like

private List<String>  newStringList= new ArrayList<>(myStringList);

newStringList.addAll(myStringList);

answered Mar 2, 2016 at 11:18

Elliott Frisch

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Comments

coder · Accepted Answer · 2016-03-02 11:18:03Z

0

Got the answer:

Here is the way:

 myStringList.addAll(newStringList);

answered Mar 2, 2016 at 11:18

coder

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@Lathy- Please check the answered duration of mine and his. He has mentioned after I have done that :)

Jagjit Singh · Accepted Answer · 2016-03-02 11:20:17Z

0

try this.Hope it helps

1. myStringList.addAll(newStringList);
2. you can loop and add to other.

answered Mar 2, 2016 at 11:20

Jagjit Singh

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