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NFC Etiket Tipi	Standart	Not
Type 1	ISO 14443A	Yaygın olarak kullanılmaz (Topaz)
Type 2	ISO 14443A	Çok popüler (Ultralight, NTAGX, ST25TN)
Type 3	ISO 14443A	Yaygın olarak kullanılmaz (Sony FeliCa)
Type 4	ISO 14443A, [ISO 14443B](https://gototags.com/nfc/standard

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Özellik	NFC	Bluetooth	RFID	Wi-Fi
Menzil	Çok kısa (birkaç santimetre)	Kısa ila orta (10 metreye kadar, Bluetooth 5 ile 100 metreye kadar)	Kısa ila uzun (birkaç santimetreden birkaç metreye kadar, bazı özel RFID sistemleri daha uzun menziller sunabilir)	Orta ila uzun (100 metreye kadar, bazı durumlarda daha fazla)
Veri Hızı	Düşük ila orta (106, 212, 424 kbps)	Orta ila yüksek (1 Mbps ila 50 Mbps)

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print("a")

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package com.example.myfirstjetpackcomposeapplication

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth

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fun main() {
    var dirtyLevel = 30
    val waterFilter: (Int) -> Int = { dirty: Int -> dirty / 2 }
    println(waterFilter(dirtyLevel))

    println(updateDirty(dirtyLevel, waterFilter))

    println(updateDirty(dirtyLevel, ::increaseDirty))

    dirtyLevel = updateDirty(dirtyLevel) { it + 23 }

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/**  https://developer.android.com/codelabs/kotlin-bootcamp-functions#5 */

fun main() {
    /**
     * In this task, you learn a bit about filters in Kotlin.
     * Filters are a handy way to get part of a list based on some condition.
     * */

    //? Step 1: Create a filter
    /**

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fun main() {

    println(5.triple())

    val list = mutableListOf("emre", "pbu", "arg")
    list.swap(0, 1)
    println(list)

    println(5.topla(1))
    println(5 topla 1)

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import java.util.*

fun main() {
    println("Hello World!")
    // Int variables examples
    var a = 1
    a = 2
    val b = 3
    // b = 4 // Error: b is a constant
    // Constants examples

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public static String isValid(String s)
{

    var freqDict = new Dictionary<char, int>();
    foreach (char letter in s.ToCharArray())// aabbccddeefghi =       //'a','a','b','b','c','c','d','d','e','e','f','g','h','i'
    {
        //Console.WriteLine($"{letter} var mi? {freq.ContainsKey(letter)}");
        if (freqDict.ContainsKey(letter))
        {
            // harflerin frekansi