secondclass.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

package examples.classes;

/** Another introductory class definition
  */
public class SecondClass {

   private int id;

   /** Test method for the class
     * @param args not used
     */
   public static void main( String[] args ) {
      SecondClass f1, f2;
      f1 = new SecondClass();
      f2 = new SecondClass();
      f1.setId( 502 );
      f2.setId( 496 );
      int idHolder = f1.getId();
      System.out.println( idHolder );
      System.out.println( f2.getId() );
   }

   public void setId( int newId ) {
      id = newId;
   }

   public int getId() {
      return id;
   }
}