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

Core Java Interview Questions

Questions Answers Views Company eMail

How to count occurrences of each duplicate element in a list {a,b,d,c,a,b} ? Thanks in Advance

TCS,

2 8270

What is meant by wrapper classes?

3 8964

how to get the max salary and name of employee from arraylist without using the Comperator or even Comparable interface?

2 27344

how can i take the inputs from users in java program?

Wipro,

7 11210

HOW TO PRINT A NO IN WORDS USING WHILE LOOP THE NO WILL BE PRINTED WHEN IT WILL BE IN THE RANGE BETWEEN 1 AND 3?

1 3742

hoe can u call a constructor of a private classs to other inherited claa??

1 3778

how can be object class inherited to all class in a program when java does not support multiple inheritance??

4 6203

can two class in a code be public??if yes then how??

2 4782

take an array with -ve and +ve value both.find out the nearest value of 0(zero).if two values are same like(-2 and +2)then extract +2 is nearest of 0(zero).

1945

Is there memory leaks in java?

3 5745

Need to use public,static keywords in main function?

5 7082

How core java/j2ee project performance can be measured ?

1 3757

If there are two notepad opened and working on it . is this a process or thread? computer based Live Example to differentiate between Thread , Process , and Multi tasking ?

TCS, Wipro,

3 7483

How Marker Interfaces are instruct to complete the desired need ?

2 4134

Matrix multiplication only using OOP concepts .

3885

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Un-Answered Questions { Core Java }

How do you call a reference in java?

932

What is difference between checked and unchecked exception in java?

978

What is not object oriented programming?

885

How many types of array are there?

964

What is java in layman terms?

974

Hi Anyone know the model / questions of the Federal bank sample questions for the post of Specialist Officers - Programmers. Please post if anyone have..

2254

What is the relationship between class and object?

995

What is hash in java?

916

What is java argument list?

893

Does java arraylist maintain insertion order?

950

What does n mean in java?

937

Explain polymorphism citing an example.

1014

What is passed by reference and pass by value ?

999

whar are the draw backs of programming lang step by step in Clang and next in C++ and next and in Java nad in .Net

2071

Why does java have two ways to create child threads?

918

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