shared prfrence in android code example

Example 1: android save int

public void saveInt(int val, String key){
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mainActivity);
    SharedPreferences.Editor editor = prefs.edit();
    editor.putInt(key, val);
    editor.apply();
}

public int getInt(String key){
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mainActivity);
    int val = prefs.getInt(key, 0);
    return val;
}

Example 2: store data in sharedpreferences android

// MY_PREFS_NAME - a static String variable like: 
//public static final String MY_PREFS_NAME = "MyPrefsFile";
SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
 editor.putString("name", "Elena");
 editor.putInt("idName", 12);
 editor.apply();