Programming Code Examples

Working With Subqueries

SQL subqueries are a powerful tool in the world of database management. A subquery is a query within a query, used to retrieve data from one or more tables and then use that data in the main query. Subqueries can be...

How to Extract Data from a Table in SQL?

Structured Query Language (SQL) is a widely-used programming language that allows users to interact with Relational Database Management Systems (RDBMS). It provides a set of commands, statements, and clauses that enable...

How to read and write QR code using java

Quick Response Code (QR Code) is a two-dimensional matrix like barcode, designed by a subsidiary of Toyota to mark their vehicles for tracking in their manufacturing facilities. This is nothing but a type of barcode...

Palindrome Number in Python using Function

Here’s an example Python function that checks if a number is a palindrome or not: def is_palindrome(num): """ Returns True if num is a palindrome, False otherwise """ # Convert the number to a string str_num =...

How to make a calculator in java using swing

In this article I am going to demonstrate how to make a calculator in Java. Below I have shared the simple calculator program in java using swing. It is a simple calculator in Java which can perform basic...

An introduction to Multi-Threading in Java

In this article we will learn what is multithreading and how to create and use threads in Java programs. Background Information Multitasking: Ability to execute two or more tasks in parallel or simultaneously is...