#programming

code What is the role of the JSON_AGG function?

The JSON_AGG function is a function in the SQL programming language that is used to aggregate data into a single JSON object or array. The function... Read more

code What is the difference between a variable and a constant in Java?

In Java, a variable is a named memory location that can store a value of a specified data type. The value stored in a variable can be changed during... Read more

code What is the difference between a regular expression and a pattern in Java?

In Java, a regular expression (regex) is a sequence of characters that defines a search pattern. It is used to match and manipulate text. In... Read more

developer_mode What is Test Driven Development (TDD)?

Test Driven Development (TDD) is a software development methodology in which the tests are written before the code. This means that the developer... Read more

memory What is the difference between a thread and a process in Java?

In Java, both threads and processes are ways to achieve concurrency and parallelism, but they are not the same thing.A process is an independent... Read more

leaderboard How is the IOI competition scored?

The International Olympiad in Informatics (IOI) is an annual programming competition for secondary school students around the world. It is a... Read more

code What is the purpose of the main method in Java?

The main method is a crucial part of a Java program. It is the entry point of any Java application and serves as the starting point of program... Read more

code What are the most in-demand programming jobs in 2022?

Programming is one of the most sought-after career paths in the tech industry. With the increasing demand for software developers, the job market is... Read more

code How do I activate the Prettier formatter?

If you're looking to activate Prettier, a code formatter, in your VS Code editor, follow these steps:Open VS Code and click on the Extensions icon in... Read more

computer How can you conduct research for IOI competitions?

Conducting research for International Olympiad in Informatics (IOI) competitions involves a combination of studying algorithms, data structures, and... Read more