Can you explain what the term 'Staging Area' means in the Git version control system?

In Git, the term "Staging Area" (or index) is an intermediate space where changes to files are placed before committing.

When you modify files in the working directory, these changes are not yet tracked by Git for commit. To prepare specific changes for saving, you add them to the Staging Area using git add.

This allows selecting which changes will be included in the next commit, and which will not. After that, git commit saves all changes from the Staging Area into the repository.

Example:

# Changed the file example.java
git add example.java   # added changes to the staging area

# Check status
git status

# Commit changes
git commit -m "Added new functionality to example.java"