In this tutorial, I will show you all how using Lambda Expression to foreach a Map object in Java. OK, let’s get started! Same like List object, the forEach () method is also added to the Map object since Java 8, which gives us more… Read More
In this tutorial, I will show you all how using Lambda Expression to foreach a List object in Java. OK, let’s get started! Usually from Java 7 and earlier, whenever you want to print out elements in a List object, for example:
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List<String> names = new ArrayList<>(); names.add("Khanh"); names.add("Tan"); names.add("Thanh"); |
We usually… Read More
In this tutorial, I would like to introduce to you all how to use properties in Spring with @Value annotation. First of all, we need a Maven project for example: I will use Java 17 for this example:
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<properties> <maven.compiler.source>17</maven.compiler.source> <maven.compiler.target>17</maven.compiler.target> </properties> |
Spring framework dependency:
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<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>6.0.3</version> </dependency> |
HelloWorld class:… Read More
In some previous tutorials, I already introduced with you all about how to read properties files in Spring using PropertyPlaceholderConfigure object, namespace util, or namespace context. So, how we can use these properties in the Spring configuration file? In this tutorial, I will guide you… Read More
I have worked with Eclipse IDE for a long time and I really like it. It helps me deal with a lot of problems in Java programming. In this tutorial, I will share with you all what I did to set up the Eclipse IDE… Read More
Suppose you have a list of student names and now you need to output that list student names using Apache FreeMarker. So how do we do it? Let’s find out in this tutorial. First, I will create a new Maven project as an example: Apache… Read More
Apache FreeMarker is a template engine, a Java library for generating output based on available data input and templates. In this tutorial, I will guide you to a simple example with Apache FreeMarker to have a basic overview about it. First, I will create a… Read More
Spark is a micro framework for creating web applications with the Java language. In this tutorial, I will show you all first step to work with Spark framework via a Hello World application. OK, let’s get started. First of all, I will create new Maven… Read More
In this tutorial, I will show you the way to create a new Maven project in Eclipse. First of all, you need to open your Eclipse IDE. Go to File, select New and then select Maven Project: Here, we have two options to create a… Read More
In this tutorial, I will show you all how we can install MongoDB on macOS. First of all, we need to download the MongoDB binary file. To do that, you can go to the download page of MongoDB at https://www.mongodb.com/download-center/community and choose the latest version… Read More
