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

997

---

What are defined as web components?

977

---

What is the purpose of a volatile variable?

1066

---

How does java enable high performance?

1154

---

What is mean by collections in java?

1182

---

Difference between default and protected access specifiers?

1128

---

What is serialversionuid?

1092

---

Which methods are used during serialization and deserialization process?

992

---

Explain about join() method?

974

---

What are the advantages of exception handling?

1066

---

What is mean by exception?

1033

---

What are the features in java?

1077

---

What does yield method of the thread class do?

1039

---

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

1072

---

Explain about exception propagation?

1039

---