How to check if an Array was defined?


So I have this String Array in my little programm called allData and it is defined by allData = saveStrings(URL);. But what if there’s no wifi connection on the device? The programm will crash instantly, because I use split to scatter the contents of allData into an other Array. I want to avoid that by checking if the array is undefinend. But how? Or is there another possibility?


There are two possibilities, either the method returns null or an empty array, you can check for both with

  if(allData != null && allData.length > 0){ 
    // We got some stuff in the array


Thanks! Forgot to test for null…