NullPointerException on ArrayList in java [duplicate]

Question

I am writing a simple java code but it gave me error of NullPointerException. My code is

String s="google";
ArrayList ss[]=new ArrayList[2];
ss[0].add(s);
System.out.println(ss[0]);

I see the error, but you should post the stack trace. Also you should look up a null pointer exception and try to find it for your self: stackoverflow.com/questions/218384/… — Forseth11
– Forseth11, Commented May 25, 2015 at 19:12

Eric Leibenguth · Accepted Answer · 2015-05-25 19:11:16Z

0

When you create the array, you do not create each element of the array. This will work:

ss[0] = new ArrayList();
ss[0].add(s);

answered May 25, 2015 at 19:11

Eric Leibenguth

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