SELECT within SELECT exercise in SQLZOO teaches how to perform complex queries with one table. I am still new to SQL and yet have to learn how to work with two different tables or more. New Keywor...

The ArrayList Data Structure From Exercise #61 to Exercise #69 focus on ArrayList<Integer>(). I am going to start with Exercise #64 which covers on how to use (ArrayList<Integer> list)...

Continuing OOP Java Week 3 In last week, we learned how to use methods and calling arguments from a method into another method. Exercise #47 to Exercise #60 focuses on how to manipulate a string o...

UPDATE In MOOC’s Week 1 and Week 2 exercises, I did not capitalize classes. I learned that classes should always be capitalized. I don’t want to change all Week 1 & 2 classes, too much of work....

This post covers SQLZOO’s Exercise #3 Quiz. In previous post “SELECT from Nobel”, few new tricks like how to arrange data in order was discussed. It is also pointed out that SQL like things to be w...

This is the third exercise from SQLZOO. First half of the third exercise is just a review on previous exercises. I don’t plan to repeat them. Second half is where it gets harder, and even harder in...

I was going to continue on Eclipse with this last exercise of the Week 2, but realize it has many components and methods of its own. I decided to use NetBeans, because I want to start Week 3 alread...

I used Eclipse until I realized that I needed to use NetBeans to unlock MOOC.FI’s upcoming week exercises. NetBeans has components and methods ready to use whereas I had to make my own methods in E...

Continuing with tutorial under SQLZOO. The second exercise is titled “SELECT from WORLD”. Using same world database from previous exercise. name continent area pop...

I decided to have some exposure on SQL (Structured Query Language). I would like to understand more about SQL and apply my programming skills onto it. This is the first post on SQL, and I am absolu...