How to read data from file using Serialize in java

This is an example of reading data from file.

import java.io.*;

public class ObjectTest2 {

public static void main(String[] args) throws Exception{
File f = new File("C:\\FileTest\\Obj.txt");
FileInputStream fis = new FileInputStream(f);
BufferedInputStream bis = new BufferedInputStream(fis,1024);
ObjectInputStream ois = new ObjectInputStream(bis);

Object obj=null;

try{
obj = ois.readObject();
}catch(ClassNotFoundException e){}

AAA ap = (AAA)obj;

System.out.println("ap.x = "+ap.x);
System.out.println("ap.y = "+ap.y);
System.out.println("ap.z = "+ap.z);

ap.disp();


}

}