Answer / raghuveer

update(Observable o,Object arg)
This method is called whenever the observed object is
changed. An application calls an Observable object's
notifyObservers method to have all the object's observers
notified of the change.
where:
o - the observable object.
arg - an argument passed to the notifyObservers method

Answer / mayank

The update() method is defined by the AWT and is
called when your applet has requested that a
portion of its window be redrawn. The problem is
that the default version of update() first fills
an applet with the default background colour and
then calls paint(). You can override the update()
method. The paint() in this case will simply call
update().

public void update(Graphic g) {
//Redisplay your window here.
}

public void paint(Graphics g) {
update(g); // call to the update()method.
}

What is difference between arraylist and list in java?

0 Answers  

---

How many bits is a string in java?

0 Answers  

---

What are data types in programming?

0 Answers  

---

How many bytes is a char in java?

0 Answers  

---

Difference between static and dynamic class loading.

0 Answers  

---

what is use of session tracking ?with example?

1 Answers   Photon,

---

Which list does not allow duplicates in java?

0 Answers  

---

What we have to do, when we don't want to implement all methods of an interface?

5 Answers  

---

What is an argument java?

0 Answers  

---

what is multithreading?

5 Answers   Virtusa,

---

What services that container provides?

2 Answers  

---

Explain naming conventions for packages?

0 Answers  

---