Core Java Interview Questions
Questions Answers Views Company eMail

when System.out.println("") is executed what happens in the back ground?

2 4304

why do we use interface in java?

5 7972

Urgent requirement of JAVA/.NET/QA in a CMMI level3 MNC for Pune location.

1866

when to for abstract class and when to go for interface

2 3665

how to print a numbers from 1 to 100 with out using control structures?

IBM,

4 5798

whats the difference between == and .equal ?

Cisco,

10 13284

what is meant by package in java?

5 9687

class A { private int i; } class B extends A { private int i; } if I create an object of B class what will be the memory of that object.

Yamaha,

2 7147

how to fing linkedlist is circular or not?

TCS,

1 2760

what is the main class of all the classes

Photon,

5 5884

what are the boundaries of jdk and jre?

CoreObjects,

1539

How will you measure that int takes up only 32 bits in memory?

Rolta,

2 4767

Map map = new HashMap(2); map.add(“1”,”one”); map.add(“2”,”two”); map.add(“3”,”three”); What will happen at this line?

Rolta,

5 13674

Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.

Rolta,

2263

Can we iterate through collection using for loop?

Rolta,

2 5145


Post New Core Java Questions

Un-Answered Questions { Core Java }

What are computer functions?

465


How many types of methods are there?

528


What are measurable parameters?

546


What is called module?

542


Can two objects have same hashcode?

547






what is a thread pool in java and why is it used?

505


How many bytes is double?

525


What does int [] mean in java?

513


Explain implementation and how is it different from conversion?

565


EDS (Electronic Data Systems India Pvt Ltd) at Chennai on 16-12-2006.

8589


Is string is a keyword in java?

525


What is the private method modifier?

557


What is the difference between preparedstatement and statement in java?

524


What is string pool in java?

538


What are the advantages of assembly language?

479