Community driven content discussing all aspects of software development from DevOps to design patterns. Good programmers need to create code that efficiently solves problems, using various methods. A ...

Community driven content discussing all aspects of software development from DevOps to design patterns. There are only half a dozen classes you really need to master to become competent in the world ...

前回は2回にわたってJavaプログラムでJSONデータを扱うための 「Jackson Java JSON-processor」 を紹介しました。今回はJSONデータを扱うもう1つのJavaライブラリ 「Google Gson」 を紹介します。Gsonの特徴は、 JavaオブジェクトとJSONオブジェクトの変換を、 シンプルな ...

System.out.printで日本語出力するJavaプログラムをIntelliJ（2025.1.1）で実行すると、下記のように日本語文字列が文字化けする。 package org.example; public class Main { public static void main (String [] args) { System.out.println ("Javaの世界へようこそ！！" ...

Before Java Specification Request (JSR) 223, Scripting for the Java Platform, (and its predecessor, the Bean Scripting Framework, or BSF), many languages were already communicating with Java. Some ...

This tutorial is an introduction to socket programming in Java, starting with a simple client-server example demonstrating the basic features of Java I/O. You’ll be introduced to both the original ...