Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

What is method Overloading in the perspective of OOPS?

6 10777

What is method Overriding in the perspective of OOPS?

TCS,

4 8442

What is numeric promotion?

1 5054

What is persistence ?

2 5852

What is procedure overloading?

2329

What is protected and friendly?

1 5616

What is serializable interface?

Infosys, Probity Soft, Seed Infotech,

13 33704

What is the difference between serialization and deserialization?

ABC,

3 16965

What is singleton class?

3i Infotech, 7 Seas, ABC, Amdocs, Cap Gemini, Oracle, Persistent, TCS, Techforza,

16 72569

What is synchronization? How it can be achieved?

2 11996

What is the % operator?

2 5293

What is Collection interface?

Zensar,

1 6091

What is Collections API?

1 4726

What is the Dictionary class?

1 4303

What is the GregorianCalendar class?

HCL,

2 6106

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is use of arraylist in java?

1197

How many ways can an argument be passed to a subroutine and explain them?

1045

What do you mean by jjs in java8?

1020

How do you replace all in word?

1083

What is contract between hashcode and equal method?

1063

What does bitwise or mean?

1104

I want to persist data of objects for later use. What is the best approach to do so?

1078

Difference between start() and run() method of thread class?

1081

What is use of static in java?

1193

Describe the syntax of multiple inheritance? When do we use such an inheritance?

1108

Is overriding possible in java?

976

Can we override protected method in java?

1078

How many threads can I run java?

1130

What does java edition mean?

1184

What are the procedures?

1070

For More Un-Answered { Core Java } Questions Click Here