bicycle.java

程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件

class Vehicle {
   protected void goSomewhere() {
      System.out.println( "travelling..." );
   }
}
public class Bicycle extends Vehicle {
   public void goSomewhere() {
      System.out.println( "pedalling..." );
   }
   public static void main( String[] args ) {
      Bicycle x = new Bicycle();
      x.goSomewhere();
   }
}