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

How to make class immutable

6 10191

How to decrease number of hashings in has

1 3847

i have 1000 records in resultset, how to get first 100 records from resultset, because resultset fetch all 1000 records at a time?

HSBC,

8 21425

Is there any limitation for no of statments executed with in batchupdate?

HSBC, IBM,

2 6315

Is it safe for adding 10,00,000 records/objects to HashMap?, i.e is it safe to add millions of objects to HashMap?

2 6017

i have make jar file but when i click in this file then arr swhow "no faund main class" plese help me in this problem becose i want to make a jar file as a dxdcutable file

1 3020

What is the difference between pageContext and page implicit objects in jsp?

Gspann Technologies, Merrill Lynch, Polaris,

9 39042

What is the purpose of premetive data types in java?

Merrill Lynch, TCS,

2 8304

Howmany number of objects we can store in an ArrayList. Is there any limit?

TCS,

7 14647

What is the basic functionality of DataOutput interface in java?

TCS,

2 6194

Can we inherit the constructor in a Class?please give one example.

iGate,

9 19709

Why do we use public static with the main function in Java?

College School Exams Tests, Infosys,

13 21175

What is the difference between overloading and overriding a function?

eG Innovations, Infosys, TCS,

13 24411

How u validate date in DD/MM/YY format. and how u validate money in ur jsp

Ashok Leyland, Satyam, Tech Mahindra, Tomax,

3 8958

when we have to use final class in java?

2 7839

Un-Answered Questions { Java Related }

What is a treeset in java?

1069

how to debug struts project in netbean ?

2394

What is the difference between ejbcreate() and ejbpostcreate?

975

Write a program in java to establish a connection between client and server?

987

What is odbc and jdbc in dbms?

979

What are swings?

1006

what is the difference between hconn and hconnx?

926

What is jpa repository in spring boot? : Spring Boot

545

Difference between get and post in java servlets?

1052

How to sort a collection of custom Objects in Java?

1080

For ejb applications with bean-managed transaction demarcations, which of the following is used by the client to get a reference to the usertransaction object for the weblogic server domain? : BEA Weblogic

976

What is java swing gui?

926

What are different types of associations in hibernate?

483

What are the principle concepts of oops?

982

Can we deploy jar in weblogic?

1021

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