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 run time allocation?

Fidelity,

1024

How can we avoid including a header more than once?

Fidelity,

1040

Define max and min heap, also the search time of heap.

GrapeCity,

1027

Where to store local variables?

Aspiring Minds,

1106

How do you declare an array that will hold more than 64KB of data?

Aspire, Infogain,

1293

What is the difference between member variables initialization and assignment in a constructor?

Hexaware, Virtusa,

1272

How can I right-justify a string?

Aspire, Infogain,

1179

How would overload a function based on return type?

Genpact,

969

Which method you will use to create a new file to store some log data. Each time a new log entry is necessary, write string to the file in java ?

HCL,

1161

Write a program to find the whether a number is an Armstrong number or not?

Aspire, Infogain,

1032

Is it possible to use Semaphore/ Mutex in an Interrupt Handler?

Ciena,

1092

Explain Basics of OOP Language in java

Atos Origin,

1060

What is an empty class? What functionality does it offer in Java?

Deloitte, EXL, JPMorgan Chase,

1274

Give any two differences between C++ and java.

GrapeCity,

1146

What do you mean by Hash Map and Hash Table?

Atos Origin,

1096

Un-Answered Questions { Java Related }

What is hibernate tool?

424

What is string tokenizer?

1083

What is a boolean flag in java?

1030

Explain the difference between extends thread vs implements runnable in java?

1130

What is difference between swing and awt?

973

What is the main purpose of java servlets?

1061

What is the application context in spring?

442

what is mena by object block any what is the use of that

2214

How transient variable is different from volatile variable?

1080

What is the string function?

955

What do you mean by Hash Map and Hash Table?

1096

How can you make the connection using jdbc?

1045

Is space a character in java?

1008

Explain the spring framework.

437

What do you mean by dependency injection and how does it work?

489

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