How does hashmap work in java ?

995

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What are the differences between string, stringbuffer and stringbuilder?

984

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What is an immutable object? How do you create one in java?

1034

---

How do you create immutable object in java?

1006

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What are the uses of synchronized keyword?

972

---

In java, what is the difference between method overloading and method overriding?

1073

---

What is the purpose of garbage collection in java?

1059

---

What kind of variables can a class consist?

1013

---

What are the differences between path and classpath variables?

995

---

How do you differentiate abstract class from interface?

932

---

Is it possible to override private or static method in java?

959

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What does the ‘static’ keyword mean? Is it possible to override private or static method in java?

941

---

Difference between the transient, persistent and detached state in hibernate?

309

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What are the key components of a hibernate configuration object?

406

---

Name some of the important interfaces of hibernate framework?

312

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