Core Java Interview Questions
Questions Answers Views Company eMail

What does jenkins do?

545

Explain Linked HashSet

1 860

List methods available in Java Queue interface

1 745

Explain Big-O notation with an example

1 743

10. What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } } 10. What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } }

614

What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } } 10. What is the output of the following Java program? class Main { public static void main(String args[]){ final int i; i = 10; System.out.println(i); } }

1 910

Why are strings immutable in Java?

1 755

How to convert string to int in java?

1 757

How to use scanner in java?

1 916

How does a cookie work in Servlets?

432

What the difference is between execute, execute Query, execute Update?

430


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Un-Answered Questions { Core Java }

Which are the two subclasses under exception class?

591


What is the difference between iterator and enumeration ?

574


Can you inherit a constructor java?

644


Can main() method in java can return any data?

736


How use .contains in java?

692






Is array serializable java?

584


what do you mean by classloader in java?

651


What is ternary operator? Give an example.

663


please send me hr interview questions in it industry

1745


What is binary tree in java?

619


What is the difference between heap memory and stack memory?

679


What is the use of generics? When was it added to the Java development Kit?

607


Which class is the superclass for every class in java programming?

632


How many bits is a float?

612


Why we use protected in java?

600