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

Core Java Interview Questions

Questions Answers Views Company eMail

what are the disadvantages of indexes in oracle?

3i Infotech, Wells Fargo,

2557

How we get some middle records in one table?

3i Infotech,

2 6362

tell me some common

TCS,

2 4509

Which is the best way of exception handling?

Oracle,

2 6965

what is the difference between System.exit() and System.exit(1)?

eClinical Solutions, eClinical Works, eClinicalWorks,

1 7203

Can there be an abstract class with no abstract methods in it?

1 3833

can any one send me the example program of immutable class?

Arfin, TCS,

2 5300

There are 100 keys and values in HashMap.how to get the keys and values?

IBS,

1 6496

what is the diffrences between platform independent and portable

TCS,

5 23588

Java support call by reference (pass by reference) ?

HCL,

1 4510

System.out & System.in are final static data member of System class but we can change there reference through setOut() & setIn() method how...

FCS, TCS,

2 6066

difference between vectorlist and hash

TCS,

1 4239

why HashTable not allow null key and value

Crimson Logic,

2 22481

why string constant pool in java

TCS,

2 8976

why top level class could not be static

L&T,

3 13101

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Un-Answered Questions { Core Java }

What is the difference between method and means?

1078

What is the difference between super class & sub class?

1195

Can It is possible to synchronize the constructor of a Java Class?

1128

How to create a fecelet view?

987

Which method returns the length of a string?

1041

Difference between java and javascript

1101

What exactly is a .class file?

1046

Where can i get Latest SUN Certification Dumps and what are the Sun Certification Codes that are available, Im new to JAVA, so please gimme info as i need to write J2EE - Core Java Certification

1868

How the interruptible method gets implemented?

975

Why do we create public static method in java?

1112

What are the different types of sorting in java?

980

What is autoboxing in java?

1066

What is classpath?

1013

Difference between a class and an object?

1038

How does a cookie work in Servlets?

844

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