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

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Java Related Interview Questions

Questions Answers Views Company eMail

What is garbage collection in Java, and how can it be used ?

Accenture, HCL, Infosys, Sara, SITS, TCS, Wipro,

32 95851

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 28680

Differentiate constructor and a method and how are it be used?

Wipro,

7 29339

What is an abstract class?

DBS, Wipro,

8 27746

How can final class be used?

Accenture, Wipro,

5 27472

By what default value is an object reference declared as an instance variable?

Wipro,

1 26553

Java support what type of parameter passing ?

Wipro,

7 20193

Explain the term serialization?

Wipro,

10 31390

Is there is any error if you have multiple main methods in the same class?

Infosys, Wipro,

10 33549

What is Overriding and how can it be used?

Consagous, Wipro,

7 33266

How is serialization used generally ?

3 21358

How are Swing and AWT be differentiated?

Wipro,

3 22379

Explain pass by reference and pass by value?

IBM, Wipro,

8 32507

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25474

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 74443

Un-Answered Questions { Java Related }

How can we execute stored procedures using callablestatement?

933

What is jdbc vs odbc?

951

Write a program to print all permutations of string?

1116

What are the important features of Java 10 release?

985

Is vector thread safe in java?

1054

What is bifunction in java?

1201

What is token in java?

1019

Explain the reason for each keyword of public static void main(string args[])?

916

What is the difference between call by reference and call by pointer?

962

What is spring default autowiring?

444

What are the aware interfaces in struts2?

1015

How to check jdbc connection in java?

933

Point out the difference between concern and cross-cutting concern in spring aop?

403

What are the benefits of using hibernate template?

488

Explain get and post.

1111

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