What is collection class in java?

959

---

Differentiate between the constructors and methods in java?

909

---

What are the main concepts of oops in java?

1658

---

Why java strings are immutable in nature?

1003

---

What are the autowiring modes?

389

---

Is there a case when finally will not execute?

967

---

What purpose do the keywords final, finally, and finalize fulfill?

1060

---

What are the different types of garbage collectors in java?

1075

---

What is a finally block?

935

---

What are the two ways to create a thread?

966

---

Can we write multiple catch blocks under single try block?

1053

---

What are the differences between processes and threads?

1011

---

How to create a custom exception?

960

---

What is exception hierarchy in java?

975

---

What is difference between overloading and overriding in java?

981

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