• flatMap with example in Java 8

    flatMap with example in Java 8: To know flatMap with example in Java 8 . please go for below steps. Stream can hold different data types In Java 8 like below example:

    But, the Collectors and Stream operations (distinct,filter, sum,…) do not support it, so, we need flatMap() to do the following conversion :

    How […]

    Posted in: Java

  • Optional Class in Java 8

    Optional Class in Java 8: Introduced a new Optional class in java 8 ( java.util package). this class is used to represent a value is present or absent. The main advantage of this new construct is that No more too many null checks and NullPointerException. By using this we can avoids any runtime NullPointerExceptions which help us to […]

    Posted in: Java

  • Java 8 Example to filter a Map

    Java 8 Example to filter a Map Here we are going to learn that how to filter a map in java 8 Stream API. -An example to know that how it was without Java 8

    -In Java 8  Map.entrySet() can be convert in to a stream, follow by a filter() and collect() as below example.


    Posted in: Java

  • SMTP Mail Through Java with Example

    SMTP Mail Through Java with Example Two mail through java with example are here to show you how to use JavaMail API method to send an email via Gmail SMTP server, using both TLS and SSL connection. below details are required for sending an email.

    To run this example, you need two libraries – […]

    Posted in: Java

  • Create a Database in MySQL

    There are two ways to create a database in MySQL 1) By executing a simple SQL query 2) By using forward engineering in MySQL Workbench In this tutorial we will learn both of the ways to create the database in MySQL. Create a Database by query method: Lets imagine we need to create a database with name […]

    Posted in: Database


    ALGEBRA In RELATIONAL DATABASE MANAGEMENT SYSTEM Relational Algebra Operators are mathematical functions used to retrieve queries by describing a sequence operations on tables or even databases(schema) involved. With relational algebra operators, a query is always composed of a number of operators, which each in turn are composed of relations as variables and return an individual abstraction […]

    Posted in: Database

  • All new features of java 8

    All new features java 8 Look at the below list to know the all new features java 8 A)Change in Language: 1.Lambda Expressions|Functional Programming Lambda expressions provide anonymous function types to Java – Replace use of anonymous inner classes – Provide more functional style of programming in Java

    2.Extension Methods|Bringing Multiple Inheritance (of Functionality) to […]

    Posted in: Java

  • JAVA to support determining the week of the year.

    Java to support determining week year Some applications, in their business logic, deal with the number of weeks in a year and the current week of the year. There are 52 weeks in a year, but 52 weeks multiplied by 7 days per week equals 364 days per year, not the actual 365 days. A week number is used […]

    Posted in: Java

  • JAVA & .NET which is the best

    Which is the best JAVA or.NET To know that which is the best JAVA or .NET following pros of both technology will help you. Pros for Java: Java EE has better OR-support than .NET. JPA (Java Persistence API), Hibernate etc. .NET comes with Entity Framework, but it isn’t as lean as JPA. In .NET land […]

    Posted in: Java

  • RDBMS, OODBMS and ORDBMS with the Comparison

    RDBMS, OODBMS and ORDBMS with the Comparison is given as below points. Comparing the RDBMS with the OODBMS: These two types of data modeling is represented by the encapsulation(binds together the data and functions that manipulate the data, and that keeps both safe from outside interference and misuse) in the object of both is state and […]

    Posted in: Database