Daily Archives: April 19, 2018


Java Wildcard – Types of Wildcard in Java 2

1. Objective In this Java Wildcard tutorial, we are going to learn what is Java wildcard and how to use a wildcard in Java Programming Language. Moreover, we will discuss types of a wildcard in Java: Upper bounded wildcards, Lower Bounded wildcards, and Unbounded Wildcards in Java with some example of Java wildcard. So, let’s start Java Wildcard Tutorial. 2. What is Java Wildcard? Wildcards in Java are basically the question mark used in generic programming, it basically represents the unknown type. […]

Java Wildcard

Apache Pig Built in Functions Cheat Sheet

Apache Pig Built in Functions Cheat Sheet 1

1. Apache Pig Built in Functions In this article “Apache Pig Built in Functions”, we will discuss all the Apache Pig Built-in Functions in detail. It includes eval, load/store, math, bag and tuple functions and many more. Also, we will see their syntax along with their functions and descriptions to understand them well. So, let’s start Pig Built in Functions. 2. Pig Functions There is a huge set of Apache Pig Built in Functions available. Such as the eval, load/store, […]


MongoDB Create Collection | MongoDB Drop Collection

1. Objective In previous articles, we have seen how to create database and drop database in MongoDB. We know that there is no command in MongoDB to create a database. Databases are created automatically in it. However, there is a command to create a collection. In this MongoDB article, we will learn MongoDB Create Collection. Moreover, we will also learn MongoDB Drop Collection with examples. So, let’s start with MongoDB Create Collection | MongoDB Drop Collection. 2. MongoDB Create Collection […]

MongoDB Create Collection | MongoDB Drop Collection

Learn Scala Map with Examples Quickly & Effectively

1. Scala Map We Have Already Studies Scala sets in our last tutorial. In this tutorial on Scala Map, we will see how to define and process maps, and what methods to call on them. We will learn to declare a Scala Map, Operations on a Map in Scala, Concatenating Maps, Printing Keys and Values from a Scala Map, Searching for a Key in a Map, Methods to Call on a Map etc. So lets begin… 2. An Introduction to […]


4 Important SAS/STAT Longitudinal Data Analysis Procedures

1. Objective In our last tutorial, we studied SAS/STAT Exact Inference. Today we will look at SAS/STAT longitudinal data analysis. Moreover, we will see how can we use longitudinal data analysis in SAS/STAT. Our focus here will be to understand different procedures: PROC GEE, PROC GLIMMIX, PROC MIXED, PROC GENMOD that can be used for SAS/STAT longitudinal data analysis. At last, we will discuss some longitudinal analysis example. So, let’s start with SAS/STAT Longitudinal Data Analysis. 2. SAS/ STAT Longitudinal Data […]

STAT Longitudinal Data Analysis