4.14 (Optional) GUI and Graphics Case Study: Creating Simple Drawings
An appealing feature of Java is its graphics support, which enables you to visually enhance your applications. We now introduce one of Java’s graphical capabilities—drawing lines. It also covers the basics of creating a window to display a drawing on the computer screen.
Java’s Coordinate System
To draw in Java, you must understand Java’s coordinate system (Fig. 4.17), a scheme for identifying points on the screen. By default, the upper-left corner of a GUI component
Fig. 4.17 Java coordinate system. Units are measured in pixels.
has the coordinates (0, 0). A coordinate ...
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