Getting un-Expected Results From String IndexOf Method

[Steve Dyke]

If 'iConn.getItemSpocno().trim()' is a blank string and '(iConn.getSpocFAIExclusionList()' = S070,S110,S120,S130 why does the following still return a 0 value?

System.out.println(iConn.getItemSpocno().trim());
System.out.println(iConn.getSpocFAIExclusionList().indexOf(iConn.getItemSpocno().trim()));

[Muhammad Safwat]

please post the output of running this code

[Campbell Ritchie]

Because an empty String can be found at the 0 position.

Imagine: if you add nothing to the beginning of that String, it won't change. Therefore it is the same as having an empty String at its very beginning, so you get 0 as the index.

[himanshu.harish agrawal]

Hello Steve,

If you will search blank i.e. "" in any String then it index will always be 0.

Thanks.