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Q1. Answer the following questions:
(a) What are the differences between hardware, software and firmware?
(b) What is the difference between an interpreter and a compiler?
(c) What do you understand by a message and an event?
(d) Write all Operator Names in Java with short description?
(e) What is meant by implicit and explicit type conversion?
(f) What is Selection Statement? Describe each statement with syntax?
(g) What are iteration statements? Name the iteration statements provided by java?
(h) Write Name the component classes of Swing API for the following components-
(i) frame (ii) button
(i)What is the difference between a text field and a password field when both obtain text from user ?
(j)What is Focus? When do FOCUS_GAINED AND FOCUS_LOST occur?
(k)What is a list ? How is it different from combo box?
(l) What is return statement describe with example ?
(m) Which keyword retains duplicate output rows in a query result?
(n) What is Alter Statement? Describe with example?
Develop an Application in javanetbeans for calculating Amount
Please refer to attached file for CBSE Class 12 Informatics Practices Sample Paper 2014 (13)