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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

What is Mutex (Mutual Exclusion Object) ?

Ciena,

1221

Give differences between Quicksort &Mergesort. When should these sorts be used andwhat is their running time in java?

Genpact,

1293

What do you mean by JVM?

Ericsson,

1143

When does a class need a virtual destructor?

Flextronics,

1070

How is tree Mirroring implemented?

Fidelity,

1127

How can u increase the heap size in the memory?

Infosys,

1073

What do you understand by abstract classes?

HCL,

1143

How do you implement tree mirroring in java?

EXL, HCL,

1128

Explain the key functions of data binding?

Akamai Technologies, Aspire, Impetus, Infogain, Tavant Technologies, Virtusa,

1073

What is Major and importance difference between for and foreach loop ?

Infosys,

1215

What is the use of generics? When was it added to the Java development Kit?

Impetus,

1072

Explain the difference between a Thread and a Process.

Ciena,

1050

How many JVMs can run on a single machine and what is the Just-In-Time(JIT) compiler?

Global Logic,

1105

Does java support multiple inheritance or not?

Hexaware,

1200

How can you read content from file in java?

HCL,

1057

Un-Answered Questions { Java Related }

What is metadata in jdbc?

1084

I have the choice of manipulating database data using a byte[] or a java.sql.blob. Which has best performance?

974

state some of the features present in web sphere?

944

Are constructors methods?

1076

Why swing is better than awt?

1075

What are the advantages in the use of spring for application development?

985

What are green threads in java?

1058

What do you understand by dependency injection?

506

Why java is better than node.js?

1039

What is the difference between jdbc and jndi?

1071

The multicast ttl setting for a cluster in the weblogic admin console sets which of the values? : BEA Weblogic

1178

Is spring jdbctemplate thread safe?

520

What is difference between dmgr and other profiles?

969

What are the types of cookies in java?

1036

What happens if connection is not closed in jdbc?

1028

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