got it

I don't know what you want and what you have~sorry!

yes; what may be the reason your program failed;

" System.in.read(client[i]);" it can be compiled? according my experience ,you may do like : DataInputStream dIn = new DataInputStream(System.in); for ( int i = 0; i<10; i++) { client[i] = dIn.readInt(); }

public static void onCreate() { // TODO Auto-generated method stub chrono.start(); } here ，chrono is instance which should not been called in a static method onCreate. you may try it : make the onCreate method not static;

select (case when count(*) >=1 then 1 else 0 end) as existance from [yourtablename] where conditions;

a static funtion can't call the instance function; you must known that;