1.5 Years Since the First Exam Where Someone Sat Seiza on a Chair | November Programming Ability Test to be Held in Ginowan, Okinawa [Deadline: October 16]

In April 2025, we held our first Programming Ability Test (Pro-Ken) at the Cross Wave classroom in Ginowan. Two people took ...

Fixing Java String Comparison Where the Same VIP Results in 0 Yen

Passing "VIP" gives a 1,000 yen discount, but passing new String("VIP") results in 0 yen. Both strings have the same content.What we are fixing this time is this discrepancy. We will use a small ...
learn

Build a custom stateful application with transformWithState

You can use transformWithState to build stateful streaming applications and to implement low-latency and near real-time solutions. With custom stateful operators, you can create arbitrary stateful ...
GitHub

Java Programming

I created this repository to learn Java, improve my programming skills, and practice problem-solving.