Answer Posted / tathagata

hi uday
I also tried this to call a interface of Collection and try
to instantiated but it is not working.
import java.util.*;
interface Test
{
public void wish();
}
class a implements Test
{
public void wish()
{
System.out.println("I am fine");
}
}
class Main
{
public static void main(String[] args)
{
Collection c =new Collection()
{
boolean isEmpty()
{
return true;
}
};
System.out.println(c.isEmpty());
Test t=new Test()
{
public void wish()
{
System.out.println("output:
hello how r u");
}
};
if(t instanceof Test)
{
System.out.println("t is a instance
of Test");
}
t.wish();
a oba=new a();
oba.wish();
}
}


But it is not working please explain.

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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