What is a lambda expression ? What's its use ?

1075

---

Describe what happens when an object is created in java ?

973

---

Difference between == and .equals() ?

969

---

What are default methods ?

1005

---

Does constructor creates the object ?

998

---

What are the difference between composition and inheritance in java?

987

---

How is abstraction implemented in java ?

948

---

How can we disable a constraint ?

988

---

Does sql allow null values ? Can we use it within where clause ?

947

---

Write an sql to find all records having all numeric characters in a field ?

926

---

Explain the difference between inner and outer join ?

990

---

What are temp tables ?

953

---

What is database deadlock ?

1112

---

What should be done for auto generating primary key id in a table ?

940

---

Can we have foreign key reference to a non primary key column ?

937

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