Trying to do Gson...

I started studying the Gson library, I try to do a lot of things about parsing. this is my code and I very appreciate it if someone tell me what I need to do to parsing Gson, this is my code:

package com.trip.android.trip.model; import java.util.List;

public class TripPlaceDetails {

private Geometry geometry; private String icon; private String id; private String name; private OpeningHours openingHours; private List<Photo> photos = null; private String placeId; private String reference; private String scope; private List<String> types = null; private String vicinity;

public Geometry getGeometry() { return geometry; }

public void setGeometry(Geometry geometry) { this.geometry = geometry; }

public String getIcon() { return icon; }

public void setIcon(String icon) { this.icon = icon; }

public String getId() { return id; }

public void setId(String id) { this.id = id; }

public String getName() { return name; }

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

public OpeningHours getOpeningHours() { return openingHours; }

public void setOpeningHours(OpeningHours openingHours) { this.openingHours = openingHours; }

public List<Photo> getPhotos() { return photos; }

public void setPhotos(List<Photo> photos) { this.photos = photos; }

public String getPlaceId() { return placeId; }

public void setPlaceId(String placeId) { this.placeId = placeId; }

public String getReference() { return reference; }

public void setReference(String reference) { this.reference = reference; }

public String getScope() { return scope; }

public void setScope(String scope) { this.scope = scope; }

public List<String> getTypes() { return types; }

public void setTypes(List<String> types) { this.types = types; }

public String getVicinity() { return vicinity; }

public void setVicinity(String vicinity) { this.vicinity = vicinity; } }

This is my code gson from json:

public TripPlaceDetails getTripPlaceDetails(String jsonString) {

Gson gson = new Gson();
TripPlaceDetails tripPlaceDetails = gson.fromJson(arr.get(i), TripPlaceDetails.class);

so now, what I should do after this code? I don't know what to do?

Thank for Help :)