OnJava8-Examples/serialization/RecoverCADState.java
2021-11-07 17:48:46 -07:00

37 lines
1.1 KiB
Java

// serialization/RecoverCADState.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Restoring the state of the fictitious CAD system
// {RunFirst: AStoreCADState}
import java.io.*;
import java.util.*;
public class RecoverCADState {
@SuppressWarnings("unchecked")
public static void main(String[] args) {
try(
ObjectInputStream in =
new ObjectInputStream(
new FileInputStream("CADState.dat"))
) {
// Read in the same order they were written:
List<Class<? extends Shape>> shapeTypes =
(List<Class<? extends Shape>>)in.readObject();
Line.deserializeStaticState(in);
List<Shape> shapes = (List<Shape>)in.readObject();
System.out.println(shapes);
} catch(IOException | ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
}
/* Output:
[
class Circle RED xPos[58] yPos[55] dim[93],
class Line GREEN xPos[61] yPos[61] dim[29],
class Circle RED xPos[68] yPos[0] dim[22],
class Line GREEN xPos[7] yPos[88] dim[28],
class Circle RED xPos[51] yPos[89] dim[9]]
*/