What is the difference between adapter and facade?

1219

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Write the code for a singleton class?

1049

---

Why have we used synchronized here?

1022

---

Give me example of chain of responsibility design pattern?

1073

---

Are you using singleton in your code?

1172

---

What is the difference between proxy and adapter?

1144

---

What is the use of such a class?

1284

---

Can we have this pattern implemented using static class?

1079

---

What is the difference between factory and abstract factory design pattern?

979

---

Why have we declared the instance reference volatile?

991

---

How many methods do u implement if implement the serializable interface?

954

---

What does the “abstract” keyword mean in front of a method? A class?

969

---

How many methods are there in the externalizable interface?

1011

---

What interface must an object implement before it can be written to a stream as an object?

1072

---

What does it mean that a method or class is abstract?

964

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