说明：  这个可以算是我第一个用Java写的应用程序，界面使用了AWT。功能非常简单，但通过它使我“懂”得了Java。 它的功能是颜色的十进制与十六进制间的转换。
(this can be considered as the first one I used to write Java applications, the use of AWT interface. Functional very simple, but I passed it "understood" gaining Java. It is the function of the color of hexadecimal and decimal the conversion.)