When should we create our own custom exception classes?

1010

---

Can we pass a primitive type by reference in java? How

907

---

When do I need to use reflection feature in java?

1074

---

Why does java have two ways to create child threads? Which way is better?

1040

---

Why does java have different data types for integers and floating-point values?

1006

---

What is byte code and why is it important to java’s use for internet programming?

1122

---

Is finalize() similar to a destructor?

1020

---

Explain the difference between protected and default access.

993

---

Explain how to convert any java object into byte array.

970

---

What is finalize()? Is finalize() similar to a destructor?

963

---

Explain the use of shift operator in java. Can you give some examples?

968

---

What is difference between add() and addelement() in vector?

1525

---

Describe how to implement singleton design pattern in struts.

1003

---

What is a treeset class?

1002

---

Can you explain the meaning of aggregation and composition

1005

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