point3d.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 questions.c4;
public class Point3D {
   private int x, y, z;
   public Point3D( int x, int y, int z ) {
      x = x;
      y = y;
      z = z;
   }
   // put your finalize method here.
   public static void main( String[] args ) {
      Point3D p1 = new Point3D( 23, -6, 78 );
      p1 = null;
      System.gc();
      System.runFinalization();
   }
}