Apache Spark hands on for beginner

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M2 In this post we are going to take a look into Spark program. Let's suppose we have two data set order and order_items we need to p...

Java 8 new Date and Time API -2

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In this previous post we already check about Date api now in this post will take a look on Time api example. Time API Example:   With the h...

Java 8 new Date and Time API -1

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In  this post we will be learning new Date and Time API that is being introduced in Java 8. Prior to Java 8 we already have couple of class ...

Java program to check a given string is Palindrome

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In this post we will learn one of the interview programming question to check given string is a palindrome or not. Lets assume input string ...

What is a Class & Object?

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A Class is a user defined datatype. Class is a structure representing the data & it's related function. Class will act a...

What is Operators,Operand & Expression?

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Operators : Java operators use to perform specific operations on one or more than one operands and then return a result. Example :-  ( + ),(...

Char and Boolean primitive type

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A char is used to store single character  and occupies two bytes of memory, or 16 bits. As char store single character but still  occupies ...

Float and Double primitive type.

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Floating number : - Unlike Integer number floating number has fraction part or decimal. Ex - 3.23434 We used floating when more...

Variables & Data Type in Java

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Variables :-  Variable are a way to store information in our computer random  access memory(RAM). A variable means that can be changed. ...
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Hello Java program

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In this post we will learn about Hello Java program and try to understand with example. 1 2 3 public class Hello { } Like other progra...