overloading

main.java

package com.alex.methods;

public class OverloadingExample {

    static void line(int length, char symbol) {
        for (int i = 0; i < length; i++) {
            System.out.print(symbol);
        }
        System.out.println();
    }

    static void line(int length) {
        line(length, '*');
    }

    static void line() {
        line(10);
    }

    public static void main(String[] args) {
        line(20, '@');
        line(15);
        line();
    }
}