NullPointerException Error while parsing the string in java

Asked Feb 14 '17 at 07:06

Active Feb 14 '17 at 08:37

Viewed 28 times

This is my code to parse a string which comes in the format of #some headers#val1,val2,val3,val4,val5#. So, i tried to parse the vals out of the format. I'm getting NullPointerException on the last line of the submitted code. Anyone kindly help to resolve this issue

String stringVal = "formatted text as mentioned above";

System.out.println("In string parser");
String delimit = "#";
int limit = 4;
output = stringVal.split(delimit, limit);
System.out.println("after split : "+ output[2]);

DataVals = output[2].split(",", 6);
System.out.println("DataVals :"+Arrays.toString(DataVals));
nCtrlNo[j] = DataVals[0];   //-----> error occurs on this line

Class members DataVals & nCtrlNo defined as

static String[] DataVals;
static String[]  nCtrlNo;

edited Feb 14 '17 at 08:37

Lucky

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asked Feb 14 '17 at 07:06

Lingaraj

It looks like you didn't initialize `nCtrlNo`. – 4castle Feb 14 '17 at 07:09
nCtrlNo[j] is not getting the value..try using a debugger..Also check if it is initialized properly – Akshay Feb 14 '17 at 07:09
@Akshay public static String[] nCtrlNo = null; ???? – Lingaraj Feb 14 '17 at 07:17
1

try initializing as public static String[] nCtrNo = new String[size]; // give some "size" – Akshay Feb 14 '17 at 07:19
Thank you exactly i have tried the same; I tried to initialize with definite size of 25. it stops throwing null pointer exception. – Lingaraj Feb 14 '17 at 07:25

NullPointerException Error while parsing the string in java

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