Prints text to the console output. Frame the concept in practical terms so you can explain it during interview discussion.
'System.out.println()' is used to output text or variables to the console, making it visible to the user. This is crucial in a console-based e-commerce app for displaying information like product details or receipts. For example, 'System.out.println("Total price: $50")' will show the total price to the user.