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Spring and Hibernate Example

Welcome readers, in this tutorial, we will create a simple application that uses the spring and Hibernate framework to display the user details on a webpage. For this tutorial, we’ll have a welcome page that fetches the user records from the MySQL database and displays it on the interface. 1. Introduction Developers can refer to this link to briefly understand the Spring, ...

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Java MongoDB Authentication Example

Hello readers. In this tutorial we will show how to start the Mongo database in secure mode and use the Java driver to connect and authenticate the Mongo database with the provided credentials. 1. Introduction If you have installed the MongoDB application (version 3.6.X) on Windows or Ubuntu operating system and you wish to learn this tutorial, then follow the ...

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Spring Batch CommandLineJobRunner Example

This article is a tutorial about Spring Batch and running the jobs with CommandLineJobRunner. We will use Spring Boot to speed our development process. 1. Introduction Spring Batch is a lightweight, scale-able and comprehensive batch framework to handle data at massive scale. Spring Batch builds upon the spring framework to provide intuitive and easy configuration for executing batch applications. Spring ...

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Log4j BufferSize Example

This article is a tutorial about log priority levels in Log4j. In this tutorial, we are going to configure log4j via property files. 1. Introduction Log4J (Java) is a widely used logging framework for Java. It continues to grow continuously with the recent upgrade to Log4j2. Log4j supports logging via Logger, Appender and Layouts. Logger is the interaction point for ...

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Log4j Date Format Example

This article is a tutorial about date format patterns in Log4j. In this tutorial, we are going to configure log4j via property files. 1. Introduction Log4J (Java) is a widely used logging framework for Java. It continues to grow continuously with the recent upgrade to Log4j2. Log4j supports logging via Logger, Appender and Layouts. Logger is the interaction point for ...

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Java 8 Convert a String to LocalDate Example

Hello readers, in this tutorial, we will learn how to convert a given response string into a java.time.LocalDate object. 1. Introduction These days in the programming universe Date and Time handling are the most time-consuming tasks in Java. In the ancient Java world, developers were dependent on the complex SimpleDateFormat class to convert and format the Date strings into the ...

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Java 8 Filter Null Values from a Stream Example

Hello readers, in this tutorial, we will learn how to filter the null elements from a Stream in Java. 1. Introduction Java Stream is a sequence of elements that support the sum operations. In streams, the elements are reckoned on demand from different data sources such as Collections, Arrays or I/O resources and thus the elements are never stored. Streams ...

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Java 8 Map Sorting Example

Hello readers, in this tutorial, we will learn how to Sort a Map using Java8 Stream’s API and Lambda expression. 1. Introduction These days in the programming universe sorting a map is one of the most habitual tasks in Java. In the ancient Java world, developers could sort a Map either by its keys or values. In Java8, JDK developers ...

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Java Read File Line by Line Example

Hello readers, in this tutorial, we will see an example of how to Read a File Line by Line in Java 8. We will learn the Java 8 Stream’s API for reading a file’s content line by line and we will explore its different characteristics. 1. Introduction These days in the programming universe reading the file content is one of ...

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Java 8 StringJoiner Example

Hello readers, in this tutorial, we will learn about the Java8 Stream’s API StringJoiner feature and we will explore its different characteristics. 1. Introduction These days in the programming universe joining multiple strings are a common task among the developers. In the ancient Java world, there was no direct way to join the multiple strings. Java8 has introduced a final ...

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