Answer Posted / deepak divvela

String hostname=Inetaddress.getAddress("portno of tcs
mail").getHostName();

How are observer and observable used in java programming?

537

---

Can we create constructor in abstract class ?

572

---

How to split a string in java?

621

---

How do you sort arraylist in descending order?

570

---

What is java used for on a computer?

502

---

---

Can you run java program without main method?

541

---

Is zero a natural number?

556

---

How to print nodes of a Binary tree?

1750

---

What technique is carried out to find out if a particular string is empty?

560

---

What is number data type in java?

545

---

What are the topics in advance java?

503

---

What are checked exceptions?

573

---

What is prime number in java?

530

---

Will set allow duplicates in java?

497

---

What is collection class in java? List down its methods and interfaces.

518

---