Answer Posted / suneetha

The use of anonymous inner classes is to access the data of
outer class.Even private data also we can access.

button.addActionListerner(new ActionListener(){
public void actionPerformed(){}
});

here we are using anonymous class to implement
ActionListener interface.If at all we are using other class
that implements ActionListener interface and passing that
obj into

button.addActionListener(obj);

In this method we cant access the private variables of the
class that call button.addActionListener();

What is meant by polymorphism?

532

---

Is string a datatype?

550

---

Does java isempty check for null?

568

---

What is the difference between heap memory and stack memory?

613

---

Explain why wait(), notify() and notifyall() methods are in object class rather than in the reading class?

557

---

---

Convert a BST into a DLL and DLL to BST in place.

665

---

What is the purpose of checked and unchecked exceptions in JAVA?

564

---

What does the string method compareto () do?

535

---

What does substring mean?

507

---

What is internal iteration in java se 8?

625

---

What is a lock or purpose of locks in java?

586

---

Define linked list and its features with signature?

537

---

What are the advantages of packages in java?

569

---

What are different types of encoding?

578

---

What are the four pillars of java?

608

---