Can't read my class from file (Android)

Question

Iv'e been searching a bit and couldn't find an answer... I've created a class and successfully saved an ArrayList of my class to a file but when I'm trying to read this file I keep on getting:

E/Reading file(14768): java.io.WriteAbortedException: Read an exception; java.io.NotSerializableException: il.co.hyperactive.callmaagansmallgate.Gate

here is my class:

public class Gate implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = 3L;
    private double latitude;
    private double longitude;
    private String name;
    private String phoneNumber;

    public Gate(String name, double longitude, double latitude,
            String phoneNumber) {
        this.name = name;
        this.longitude = longitude;
        this.latitude = latitude;
        this.phoneNumber = phoneNumber;
    }

    public Gate(String name) {
        this.name = name;
    }

    public void setPlace(double latitude, double longitude) {
        this.longitude = longitude;
        this.latitude = latitude;
    }

    public String toString() {
        return name + "\nLatitude:" + latitude + "\nLongitude:" + longitude
                + "\nNumber:" + phoneNumber;
    }

    public double getLatitude() {
        return latitude;
    }

    public void setLatitude(double latitude) {
        this.latitude = latitude;
    }

    public double getLongitude() {
        return longitude;
    }

    public void setLongitude(double longitude) {
        this.longitude = longitude;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhoneNumber() {
        return phoneNumber;
    }

    public void setPhoneNumber(String phoneNumber) {
        this.phoneNumber = phoneNumber;
    }
}

Where did **java.io.WriteAbortedException** come from here, is that the contents of your file? — Elliott Frisch, Jul 14 '14 at 02:12
You might check this answer for some info: http://stackoverflow.com/questions/17885968/java-io-notserializableexception-unable-to-deserialize-hashmap-in-java — Mike M., Jul 14 '14 at 03:46
Jigar, I built it and recompiled it for several times.. Elliot, the exception thrown while i tried to read a saved file with an object of this class in the internal storage. Mike, I already saw this post - didn't help me ... thx to you all anyways — RawKnee, Jul 14 '14 at 23:17

score 0 · Answer 1 · answered Jul 16 '15 at 09:04

Serializable needs a default constructor, no arguments. So be sure to add:

public Gate(){
}

This is needed because the compiler only generates a default constructor if there is not one specified. Serialization always calls the default constructor and then fills the object up via getters and setters.

Can't read my class from file (Android)

1 Answers1