//Account accountSum;
Account accountSum=new Account();

What exactly the issue ?

is it a standalone application or a web application ?
One more thing .in which manner you wanna show the error message ?

is it a standalone application or a web application ?
One more thing .in which manner you wanna show the error message ?

First you check for the User name and password submitted from the login page , after validating the values submitted by the user , set a flag if the user is valid (successful login)
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thanks chris
i compiled the java file with imports and with out imports . there is no size diff
Will import delay the compile time

Can one give a exat answer for this question

i have a java program with hundred packages imported but iam not using any one of them in program .i have only a SOP which prints hello world! .the...