this() and super() : this « Modifiers « SCJP

1. SCJP
2. Modifiers
3. this

import java.awt.Color;

class Rectangle {
  double x, y, width, height;

  public Rectangle(double x, double y, double width, double height) {
    this.x = x;
    this.y = y;
    this.width = width;
    this.height = height;
  }

  public Rectangle(double x, double y) {
    this(x, y, 10, 10);
  }

  public Rectangle() {
    this(1, 1);
  }
}

class MyRectangle extends Rectangle {
  Color outerColor;
  Color innerColor;

  public MyRectangle(double x, double y, double width, double height,
      Color outer, Color inner) {
    super(x, y, width, height);
    outerColor = outer;
    innerColor = inner;
  }

  public MyRectangle(Color outer, Color inner) {
    super(10, 10, 100, 100);
    outerColor = outer;
    innerColor = inner;
  }

  public MyRectangle() {
    super();
    outerColor = Color.black;
    innerColor = Color.white;
  }
}