Command-line arguments are values passed to a Java application when it is executed from the command line or terminal. They provide a way to customize the behavior of the application without modifying its source code.

Command-line arguments are often used to provide configuration parameters, input data, or options to the Java program. Arguments can be of any data type, but they are always passed as strings.

Command-line arguments are specified after the name of the Java class file or JAR file and are separated by spaces.

The general syntax for running a Java program with command-line arguments is:

java ClassName arg1 arg2 arg3 ...

ClassName: Name of the Java class containing the main method.

arg1, arg2, arg3, …: Command-line arguments passed to the Java application.