MathApp, Settings.java

package com.example.mathapplication;

import android.content.Context;
import android.content.SharedPreferences;

public class Settings {
    private static final String PREFERENCE_FILE_NAME = "com.example.mathapplication.Settings";
    static int min = 10;
    static int max = 10;
    static boolean add = true;
    static boolean sub = true;
    static boolean mul = true;
    static boolean div = true;


    static void saveSettings(Context context) {
        SharedPreferences sharedPref = context.getSharedPreferences(PREFERENCE_FILE_NAME, Context.MODE_PRIVATE);

        SharedPreferences.Editor editor = sharedPref.edit();
        editor.putInt("RANGE_MIN", min);
        editor.putInt("RANGE_MAX", max);
        editor.putBoolean("OPERATOR_ADD", add);
        editor.putBoolean("OPERATOR_SUB", sub);
        editor.putBoolean("OPERATOR_MULL", mul);
        editor.putBoolean("OPERATOR_DIV", div);
        editor.apply();
    }

    static void loadSettings(Context context) {
        SharedPreferences sharedPref = context.getSharedPreferences(PREFERENCE_FILE_NAME, Context.MODE_PRIVATE);
        min = sharedPref.getInt("RANGE_MIN", min);
        max = sharedPref.getInt("RANGE_MAX", max);
        add = sharedPref.getBoolean("OPERATOR_ADD", add);
        sub = sharedPref.getBoolean("OPERATOR_SUB", sub);
        mul = sharedPref.getBoolean("OPERATOR_MULL", mul);
        div = sharedPref.getBoolean("OPERATOR_DIV", div);
    }
}