While working with Maven projects, you can face the case that the library we need does not exist in any Remote Maven Repository. In that case, to be able to use this library in your Maven project, you need to either install it to the… Read More
I showed you how to run a container using the “run” command in Kubernetes. This tutorial, I introduce you another way is to use the “create” command with a configuration file! The syntax of the “create” command is basically the following:
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kubectl create -f <path_to_configuration_file> |
Where <path_to_configuration_file> is… Read More
The “run” command of the Kubernetes Controller is used only to create a new Pod in the Kubernetes cluster. This command makes it easy for beginners to learn about Kubernetes to deploy a Pod and thus easily deploy a container in a Kubernetes cluster. In… Read More
To work with any system, the first thing you need to grasp is the basic concepts used with that system. So, in this tutorial, I would like to explain the important concepts in Kubernetes to you guys! These concepts include: Node A node is a… Read More
Normally, before Java 8, when we want to sort the elements of a List in Java, we will use the Comparator object. Eg:
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package com.huongdanjava.javaexample; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; public class Example { public static void main(String[] args) { List<String> names = new ArrayList<>(); names.add("Thanh"); names.add("Khanh"); names.add("Tan"); Collections.sort(names, new Comparator<String>() { @Override public int compare(String s1, String s2) { return s1.compareTo(s2); } }); for (String s : names) { System.out.println(s); } } } |
Result: From Java 8 onwards, we have another way of doing this. That is, using the sort() method of the List… Read More
Java applications run on a Java Virtual Machine (JVM) so understanding how Java applications work in the JVM will help us understand how to organize and write code more efficiently. Currently, we have a variety of JVMs built by different companies based on the JVM… Read More
In the previous tutorial, I showed you how to deploy an application to the Cloud Foundry using a push command. In case you do not want to use that application anymore, delete them because everything you deploy to Cloud Foundry will be charged regardless of… Read More
In the previous tutorial, I showed you how to create a new directory in Java. In this tutorial, I will guide you with some ways to delete a folder! The first is that we can use the File object. Deleting a directory in Java using… Read More
I have introduced the method reference in the previous tutorial, in this tutorial, I introduce you another new concept: constructor reference. Like the method reference, the constructor reference is used to abbreviate the Lambda Expression expression. How is it in details? Suppose you are working… Read More
Method reference is a new Java concept from version 8. It comes with Lambda Expression, which makes code writing using Lambda Expression even short but still shorter in some cases. In this tutorial, let’s learn more about the method reference in Java! OK, let’s get… Read More
