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regard html with connection

 
Greenhorn
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i have a small query .regarding connecting of html with servlet.where if i give input values to the html page should be displayed in the output browser with some business logic executed in the servlet.even if i am not giving any values to the html form it should not thorugh number formatexception and but it should neglete the left variable.and display the remaing variables.j
 
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Please continue in your original post.
 
Consider Paul's rocket mass heater.
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