What are variadic functions in Java?

Methods which uses variable arguments (varargs, arguments with three dots) are known as variadic functions.

Example

public class Sample {
    void demoMethod(String... args) {
        for (String arg: args) {
            System.out.println(arg);
        }
    }

    public static void main(String args[] ){
        new Sample().demoMethod("ram", "rahim", "robert");
        new Sample().demoMethod("krishna", "kasyap");
    }
}

Output

ram
rahim
robert
krishna
kasyap