What do you mean by access modifier?

974

---

What are the data types supported by java? What is autoboxing and unboxing?

952

---

What does the “static” keyword mean? Can you override private or static method in java?

1048

---

What is structure of java heap? What is perm gen space in heap?

1065

---

What is function overriding and overloading in java?

1062

---

What is the difference between a synchronized method and a synchronized block?

1031

---

Why collection doesn’t extend cloneable and serializable interfaces?

1058

---

Explain different ways of creating a thread?

998

---

What differences exist between iterator and listiterator?

1004

---

Explain the differences between abstraction and encapsulation?

1007

---

What is autoboxing and unboxing?

953

---

What is the importance of finally block in exception handling?

968

---

What is the difference between exception and error in java?

969

---

Can you override private or static method in java?

935

---

What is comparable and comparator interface? List their differences

1042

---