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Answer Posted / dinesh
All the objects that are created must be given initial
values.There are two approach for this.
1)Using the dot operator to access the instance variables
and then assign values to them individually---This is a
tedious approach.
2)Use of getData method to initialize each object
individually.eg:add.getData(10,15)
To make this simpler Java supports a special type of method
called a Constructor,that enables an object to initialize
itself when it is created.Constructor have the same name as
the class itself and they do not specify a return type,not
even void,bcoz they return the instance of the class itself.
| Is This Answer Correct ? | 23 Yes | 4 No |
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Draw a UML class diagram for the code fragment given below: public class StringApplet extends Applet { private Label sampleString; private Button showTheString; private ButtonHandler bHandler; private FlowLayout layout; public StringApplet() { sampleString = new Label(" "); showTheString = new Button (" Show the String"); bHandler = new ButtonHandler(); layout = new FlowLayout(); showTheString.addActionListener(bHandler); setLayout(layout); add(sampleString); add(showTheString); } class ButtonHandler implements ActionListener { public void actionPerformed(ActionEvent e) { samplestring.setText("Good Morning"); } } } Note: The methods need not be indicated on the diagram.
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