how to use super constructor in java
public class Rectangle
{
private double length; // To hold length of rectangle
private double width; // To hold width of rectangle
}
public class Box extends Rectangle
{
private double height;
public Box(double length, double width, double height)
{
// Call the superclass constructor to
// initialize length and width.
super(length, width);
// Initialize height.
this.height = height;
}
}
public class BoxDemo
{
public static void main(String[] args)
{
// Create a box object.
Box myBox2 = new Box(12.2, 3.5, 2.0);
}
}