Assigning a value to the String array - geting exception

Hi,
All I'm trying to do is
String[] appName = null;
appName[0] = "all";
This is throwing a Null Pointer Exception!

Of course it is. You have to init. the object. Ex:
String[] appName = null;
appName = new String[1];
appName[0] = "all";
or even better:
String[] appName = new String[1];
appName[0] = "all";

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