What is collection class in java?

1011

---

Differentiate between the constructors and methods in java?

952

---

What are the main concepts of oops in java?

1750

---

Why java strings are immutable in nature?

1076

---

What are the autowiring modes?

429

---

Is there a case when finally will not execute?

1009

---

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

1095

---

What are the different types of garbage collectors in java?

1142

---

What is a finally block?

986

---

What are the two ways to create a thread?

1008

---

Can we write multiple catch blocks under single try block?

1088

---

What are the differences between processes and threads?

1067

---

How to create a custom exception?

995

---

What is exception hierarchy in java?

1013

---

What is difference between overloading and overriding in java?

1028

---