Java default & parameterized constructor

Write a program in Java to implement default & parameterized constructor.

public class Cube1 {
    int length;
    int breadth;
    int height;

    public int getVolume() {
        return (length * breadth * height);
    }

    Cube1() {
        length = 10;
        breadth = 10;
        height = 10;
    }

    Cube1(int l, int b, int h) {
        length = l;
        breadth = b;
        height = h;
    }

    public static void main(String[] args) {
        Cube1 c1, c2;

        c1 = new Cube1();
        c2 = new Cube1(10, 20, 30);

        System.out.println("Volume of Cube1 is : " + c1.getVolume());
        System.out.println("Volume of Cube1 is : " + c2.getVolume());
    }
}

Output

Volume of Cube1 is : 1000
Volume of Cube2 is : 6000