Describe the file types *.ear, * .jar and *.war?

951

---

What are defined as web components?

936

---

What is the purpose of a volatile variable?

995

---

How does java enable high performance?

1110

---

What is mean by collections in java?

1119

---

Difference between default and protected access specifiers?

1059

---

What is serialversionuid?

1040

---

Which methods are used during serialization and deserialization process?

961

---

Explain about join() method?

927

---

What are the advantages of exception handling?

1031

---

What is mean by exception?

998

---

What are the features in java?

1043

---

What does yield method of the thread class do?

992

---

Difference between start() and run() method of thread class?

1027

---

Explain about exception propagation?

991

---