Java tutorial
//package com.java2s; import android.content.Context; import android.content.SharedPreferences; import android.preference.PreferenceManager; public class Main { public static void putFloat(final Context context, final String key, final float value) { if (context != null) { final SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(context); final SharedPreferences.Editor editor = settings.edit(); editor.putFloat(key, value).apply(); } } }