Answer Posted / john

@Uday Ur fooling amateur coders by creating an anonymous
class within the class . U cannot create an instance of an
Interface .If so try to make execute this code lol class

interface Test{
public void wish();
}
class Main
{
public static void main(String[] args)
{
Test t=new Test();
t.wish();
}
public void wish()
{
System.out.println("output: hello how r u");
}
}

You're given a Boolean 2D matrix, can you find the number of islands?

1046

---

Write the algorithm to check the number non-leaf nodes in a tree.

1009

---

What is meant by object oriented programming – oop?

922

---

List some java keywords sun like c, c + + keywords?

961

---

What are unchecked exceptions in java?

990

---

How does remove work in java?

906

---

Why wait(),notify(),notifyAll() methods defined in Object class althought we are using in only threads.

2757

---

What is jit compiler ?

940

---

Explain java thread life cycle.

966

---

What are the elements of java?

967

---

What is stringbuffer in java?

1003

---

What are streams?

1058

---

What are drawbacks of singleton class?

906

---

What is passing value java?

998

---

What do you understand by abstract classes?

1017

---