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

Core Java Interview Questions

Questions Answers Views Company eMail

java program with complete 4 oops concepts implemented example

Infosys, NIIT,

3213

what is platform independence in java?

CSC, HSBC,

5 8882

if num=687; U have to get num=6+8+7;

CMC,

4 6365

there are some duplicate values in ArrayList, how U'll get that array with out duplicate?

CMC,

4 9475

in a console we r giving java if r pressing enter where it'll goes

CSC,

2 5041

Can we extend the String class?

Truworth,

3 25539

we r taking 0 1 in deployment descripter for loading servlets like serv1 N serv2? so 'll it take serv1 or serv2

CSC,

2 7611

what are the different non-access specifiers in java?

5 12249

java Technical questions asked by JPMC

JPMorgan Chase,

5143

what are variables in java

Wipro,

7 9600

What is multithreading ???? How to stop multithrading in java????

Cognizant,

1 5450

Suppose there is an array list [10,5,20,19,15,24].Print them in ascending & descending order in collection framework concept ???

Cognizant,

2 7151

What will happen if we cannot mention "finally" in Java Program ???

PWC,

3 7352

What is default specifier ??? Use of default specifier ???

Cognizant, Syntel,

4 8699

write a program to create an arraylist with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2222

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Un-Answered Questions { Core Java }

Which programming language is most secure?

1037

How will you call an Applet using Java Script Function?

1088

Why singleton class is used in java?

1197

Write a program to check string is palindrome without using loop?

1092

How much ram can a 64 bit processor theoretically?

964

What is the right data type to represent a price in java?

1022

What does the “final” keyword mean in front of a variable? A method? A class?

1037

How to sort an unsorted array in java?

1188

What is definition and declaration?

1063

Difference between linkedlist and arraylist.

1119

Explain an algorithm to find depth of a binary tree.

1103

What is a class component?

1220

Can you run java program without main method?

1116

What is tree in java?

993

What is the final access modifier in java?

1118

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