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Question:
(a) Explain the importance of abstract classes in Java with an appropriate example.
(b) Explain what is meant by an interface in Java? Use a simple example to illustrate your answer.
(c) A GUI may contain text-fields, buttons, and other labels. A button usually triggers an event on the GUI. Explain the different processes in registering an event and handling the action performed by the button in Java.
(d) Write the code for a GUI which will allow a user to enter two numbers and then compute the product by clicking on a button. The result can be displayed in a text-field or as a label on the GUI.
Draw a 5 inch square on the screen using pseudocode
2. Problem Description: A Java program needs to be written to display the result of following operations based input character. The table for input character with operations is : I
Operator Functionality E x ample/Explanation = Sets one value equal to another counter=0 Sets the counter to equivale
Explain the term Event Handler? An event handler is a command that calls a function while an event happens, like as the user clicking a button.
What is Methods in java explain with an example? Data types aren't much use unless you can do things along with them. For this reasons classes have techniques. Fields say what
A socket is interaction channel, which facilitates inter-process communication. A socket is an endpoint for interaction. There are two types of sockets, dependin
Question 1 What are the different types of data types in java? Question 2 Write a note on Operator Precedence Question 3 Write a note on Random access files
What is 'public static void main (String args[ ] ) ' signifies? Access specifier is the 'public' keyword. 'static' keyword allows main() to called without instantiating
Java has some bugs in its applets. Java team stated that they have zero tolerance over security features and subsequent editions of Java are managing Bug free environment. Some of
how do this program?
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