java

JSON (JavaScript Object Notation) is a lightweight data-interchange format that has gained significant popularity in modern web development. It provides a simple and human-readable way to represent structured data. JSON consists of key-value pairs and supports various data types, including strings, numbers, booleans, arrays, and nested objects. The importance of JSON lies in its ability…

Read More Convert Java Objects to JSON

In this tutorial, we will explore how to ignore unknown JSON fields in Java using Jackson. We will cover the default behaviour, ignoring unknown properties on a class level, ignoring unknown properties globally, and how to deal with incomplete JSON. Additionally, we will discuss security concerns related to ignoring unknown properties using annotations. If you’re…

Read More Ignore Unknown JSON Fields with Java Jackson

Working with strings is a fundamental aspect of programming, and Java provides a rich set of tools and methods for manipulating strings. One common task when working with strings is to remove whitespace characters such as spaces, tabs, and newlines. There are several ways to accomplish this in Java, including using the replaceAll() method from…

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In this lesson, you will learn about the history of Java, types of Java programs, Java Virtual Machine (JVM), Java Standard Library and current Java editions. History Java was developed in 1991 by the Green Team, comprising James Gosling, Mike Sheridan, and Patrick Naughton, as a pilot project for a simple language to program smart…

Read More Introduction to Java

In this Java tutorial, I am going to share with you different ways how to generate a random string of characters. You will learn to generate the following types of random Strings of characters: alpha-numeric String of characters of any length or of a specific length, Letters only, Numbers only. I hope you will find…

Read More Random String of Characters in Java. Different Examples.

In this tutorial, we will generate a random alpha-numeric string of characters, which can be used as a user password. Password Requirements When generating passwords, it’s important to set requirements that make them strong and difficult to guess. Here are some guidelines to follow when creating password requirements: Length The length of a password is…

Read More Generate Secure Password in Java