Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Java J2EE Interview Questions

Questions Answers Views Company eMail

What are access specifiers in java ?

Akamai Technologies,

1210

What data structures are used to perform recursion?

Akamai Technologies,

1110

What is a stack class in java ?

Akamai Technologies,

1160

What is method overloading in JAVA? Why is it not present in C ?

Akamai Technologies,

1159

What is the difference between quicksort & mergesort? When should they be used? What is their running time?

Akamai Technologies,

1150

Tell me about networking classes and interfaces.

Akamai Technologies,

1105

What is cookies in networking ?

Akamai Technologies,

1058

What is HttpURL connection ?

Akamai Technologies,

1104

Lowest Common ancestor in a Binary Search Tree and Binary Tree.

Amazon,

992

Program to Find the second largest element in an array.

Amazon,

1270

Print Vertical traversal of a Binary Tree.

Amazon,

1067

Make a data structure and implement an algorithm to print all the files in a directory. (The root directory can have sub-directories too.)

Amazon,

1385

Is {a, n, d} a palindrome? If you are given a random string, is it a palindrome or not?

Amazon,

1207

Add a value x to array from index l to r where 0 <= l <= r <= n-1

Amazon,

1147

Implement a stack with push (), pop() and min() in O(1) time.

Amazon,

1166

Un-Answered Questions { Java J2EE }

Is intellij better than eclipse?

1156

What is core java called?

1035

What is jms topic?

1040

What are different types of autowire types?

520

Which container method is used to cause a container to be laid out and redisplayed?

1193

What is the function of log?

1072

List out five keywords related to exception handling ?

1074

How big is a pointer?

1086

How does hibernate help in the programming?

385

What is meant by oops concept in java?

1058

Explain differences between checked and unchecked exceptions in java?

1120

What is polymorphism in java? What are the kinds of polymorphism?

1133

What is the console in java?

1215

Is string is a data type?

994

what is the use of commit for connection to databases?

997

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