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Java J2EE Interview Questions
Questions Answers Views Company eMail

Explain what is Marker interface?

BirlaSoft,

1151

Give few examples of final classes defined in Java API?

BirlaSoft,

1295

How is the marker interface used in Java?

BirlaSoft,

1152

Java is Pass by Value or Pass by Reference?

BirlaSoft,

1098

When is the garbage collection used in Java?

BirlaSoft,

1274

what is meant by Garbage collection?

Cap Gemini,

1156

what is meant by HQL?

Cap Gemini,

1125

How many types of literals are there in JAVA?

Cap Gemini,

1110

Where is the singleton class used?

Cap Gemini,

1086

why Java does not support multiple inheritances?

Aspire,

1215

give an example for encapsulation?

Aspire,

1102

Explain the pointers in Java?

Aspire,

1113

what is meant by Byte code concept in Java?

Aspire,

1142

what is meant by abstract class?

Aspire,

1191

what is meant by encapsulation?

Aspire,

1140

Un-Answered Questions { Java J2EE }

Which is better setter or constructor injection?

475

What are the pros and cons of detached objects?

1053

Explain the difference between jvm and jre?

1086

What is the difference between overriding and overloading in OOPS.

1229

Is java a high level language?

1144

Explain heap sort?

1184

Difference between 5.0 and 6.0?

905

What does snprintf return?

1063

What are devices?

1037

What is array pointers ?

1098

Why is whitespace important?

1153

Why do we need ioc?

491

Write a program to print all permutations of string?

1169

What is difference between stringbuffer and string?

1025

What is java transaction api (jta)?

997

For More Un-Answered { Java J2EE } Questions Click Here