Summary - Save/Load

Reinforce Save/Load usage with a summary task.

Summary: Save and Load Systems

In this group, you learned the spectrum of data persistence: PlayerPrefs for lightweight preferences, JsonUtility for serialization, Application.persistentDataPath for safe cross-platform file paths, and versioning for backward compatibility.

// Complete save lifecycle
string json = JsonUtility.ToJson(saveData);
File.WriteAllText(filePath, json);

Assembling these components establishes a resilient save/load architecture across desktop and mobile platforms alike.

Exercise Save and load system review

Define a Start method. Inside, declare string durum = "Kayit sistemi aktif"; and print it to the console with Debug.Log(durum);.

Show example solution

using UnityEngine;

public class SaveLoadSummary : MonoBehaviour
{
    void Start()
    {
        string durum = "Kayit sistemi aktif";
        Debug.Log(durum);
    }
}

Test yourself

What is the correct sequence of operations in a complete save and load pipeline in Unity?
- PlayerPrefs.SetInt -> Compile GPU Shader -> File.ReadAllText
- Prepare Data Object -> Serialize with ToJson -> Write to persistentDataPath File
- Close StreamWriter -> Rename File -> PlayerPrefs.DeleteAll
- Delete File -> JsonUtility.FromJson -> PlayerPrefs.Save
Show answer

Prepare Data Object -> Serialize with ToJson -> Write to persistentDataPath File — In the save pipeline, data is first gathered into an object, serialized to JSON text via JsonUtility, and written to a file under persistentDataPath.

Verify file existence

if (File.____(saveFilePath)) { LoadGameData(); }

Show answer

if (File.Exists(saveFilePath)) { LoadGameData(); }

Save/Load summary match

PlayerPrefs

Quick settings and preference storage
JsonUtility

Serialization between object and text
persistentDataPath

Cross-platform save directory
saveVersion

Compatibility tracking for save data

Next lesson: System design

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