adspace


Core Java Interview Questions
Questions Answers Views Company eMail

What does jenkins do?

1 1019

Explain Linked HashSet

1 1749

List methods available in Java Queue interface

1 1584

Explain Big-O notation with an example

1 1619

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); } }

1079

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 1670

Why are strings immutable in Java?

1 1678

How to convert string to int in java?

1 1622

How to use scanner in java?

1 1949

How does a cookie work in Servlets?

1 946

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

1 933

Is Java Platform Independent if then how?

5 1653

What will happen if we declare don’t declare the main as static?

5 1772

How many types of packages are there in Java?

5 1729

Explain different data types in Java.

5 1784


Post New Core Java Questions

Un-Answered Questions { Core Java }

How to create a base64 decoder in java8?

1152


What is the difference between break and continue statements?

1135


Is minecraft 1.15 out?

1056


What are the differences between heap and stack memory in java?

1153


Write a program to print count of empty strings in java 8?

1096


explain different ways of using thread? : Java thread

1092


Write a program to find the whether a number is an Armstrong number or not?

1110


How to sort array in descending order in java?

1006


What is a constructor overloading in java?

1136


Realized?

2278


What is an object in java and how is it created?

1155


Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2677


What is the difference between equals() and == in java?

1050


What is java string pool?

1091


What is a classloader in java?

1101