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Java Related Interview Questions
Questions Answers Views Company eMail

What is nested loop? What is dangling else condition in it?

Ericsson,

578

What will happen when using pass by reference in java?

HCL,

528

What is a concrete classes? Is Java object class is concrete class?

Infosys,

522

Given a singly linked list, find the middle of the list in a single traversal without using temporary variable.

Fidelity,

617

What is Gang of four design patterns

Infosys,

598

Can a constructor be private and how are this() and super() method used with constructor?

Flextronics, Hexaware,

531

What is a default constructor and also define copy contrucyor?

Global Logic,

607

Why use string handling in Java?

HCL,

585

Explain heap sort?

Flextronics,

705

What are recursive functions? Give some examples?

Axtria, ITC Indian Tobacco Company,

621

How do you access command-line arguments within the code?

Flextronics, Hexaware,

575

What is the difference between static and global variables and also define what are volatile variables?

Flextronics, Hexaware,

559

What is a Hash Table? What are the advantages of using a hash table?

Ciena,

612

What is a Transient Object?

InfoAxon Technologies,

643

Why declare Main() method as a static in java ?

HCL,

600

Un-Answered Questions { Java Related }

How do I disallow NULL values in a table?

547

What is general hibernate flow using RDBMS?

197

What happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body of the try statement?

666

What is the purpose of javac exe?

564

Can we have more than one package statement in the source file?

645




What does web module contain?

526

What are data-sources and what features do they offer? What are the recommend parameters to improve the prformance from data-source point of view.

566

In hyderabad, which s/w training center is best for java, other than corejava what r the new tools to learn in java,which tool is best & have current requirement,pls give me information about java to learn ?

1685

What are four types of JDBC driver?

574

Can we write lambda without functional interface?

459

What is the importance of main method in Java?

579

What is meant by dao? : Spring Boot

158

What are the different components of a spring application?

174

What are the ddl statements?

477

Do I need java for windows 10?

555

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