public String[][] fetchData()
{
String[][] data = null;
int counter = 0;
while (counter < 10){
data[counter] = new String[] {"abc"};
counter++;
}
return data;
}
Getting the error in this loop. Please let me know where i am wrong
String[][] data = null;
==> you have a null pointer exception when you try to write in data
You might do
String[][] data = new String[10][];
You get a NPE because you explicitly set data to null:
String[][] data = null;
You need to allocate the number of rows first:
String[][] data = new String[][NUMBER_OF_ROWS];
data[counter] = new String[] {"abc"};
Here you are putting "abc" to array, but why you're using array if it has only one cell?
data[counter] = new String("sample string");
would be enough. And ofc you need also to declare "data" as one-dimensional array.
