traffic.java

关于java面向对象系统分析方面的课件

/*
 * s2javaoo.lg.ch03.Traffic.java
 * 2007-7-23
 * 运输接口
 */
package s2javaoo.lg.ch03;

public interface Traffic {
    public static final int TRUCK  = 1 ;
    public static final int TRAIN  = 2 ;
    public static final int PLANE  = 3 ;

    public double computeCost(double weight, double length); 
}