Posts Tagged "Java"

Generating JSON Web Tokens (JWT) in Java or PHP

JSON Web Tokens (JWTs) are a mechanism for authentication that is simple to setup and easy to use. However, most of the time when you encounter this topic in a project, you get the advice to just use a JWT package. I am not quite sure why given that creating a token is relatively straight forward if you know how they are built. You can also implement such logic in ...

Rolling Dice in Java, C# and PHP

Some of the very first programs we are introduced to in programming is the idea of random numbers. This is often introduced using the idea of the die or dice. We have all seen them and have probably even thrown a set of dice at some point in our life. A die is pretty much a representation of a random number generator with a fixed range of values. The traditional ...

A Beginner Tic-Tac-Toe Class for Java

Around this time each year we mentors on Dream.In.Code see a bunch of students and beginners, attempting to do there final programming projects, come on the boards asking for help with coding problems. Some even come on asking for ideas to help them out and a large majority want help with simple games they can do like connect four, "the snake game" or even Tic-Tac-Toe. Then each year we throw ...

Counting Number Frequency in Java

Over the past couple weeks I have noticed a lot of students asking questions about counting number frequencies. The student is often generating, or asked to take in input, and count how many times a series of numbers appear in the data. Sometimes they are given a file for the input and other times they are asked to take in numbers entered by the user and count them. So I ...

Demo of Twitter Application-Only OAuth Authentication Using Java

I found that there was little in the way of examples using Application-Only OAuth for Twitter using Java. So I thought I would put together the basics for those looking for the same thing. This demo example below shows you how to acquire a bearer token and then using that token to issue requests to Twitter's REST API version 1.1. However, only endpoints that don't need to have a user ...

Review of Java The Complete Reference: Eighth Edition

Today I wanted to share with you all another great book that I have in my library. Java The Complete Reference written by Herbert Schildt and published by Oracle Press is a beast of a book and contains just about anything you want to look up about Java. This particular edition came out in June of 2011 and has been updated to include JDK 7. As it stands it is ...