Satrlar bilan ishlash

fun main() {
    val ism = "Nodira"
    val ball = 88

    println("Talaba: $ism")
    println("Ball: $ball")
    println("Keyingi ball: ${ball + 5}")
    println("Ism uzunligi: ${ism.length}")
}

fun main() {
    val narx = 25
    println("Narxi: \$$narx")
    println("${'$'}{bu shablon emas}")
}

fun main() {
    val shahar = "Namangan"

    println(shahar.length)
    println(shahar.uppercase())
    println(shahar.lowercase())
    println(shahar.substring(0, 4))
    println(shahar.contains("man"))
    println(shahar.indexOf("man"))
    println(shahar.first())
    println(shahar.last())
    println(shahar.reversed())
}

fun main() {
    val matn = "salom"
    matn.uppercase()
    println(matn)

    val yangi = matn.uppercase()
    println(yangi)
}

fun main() {
    val xabar = """
        Hurmatli talaba,

        Imtihon 15-sentabrda bo'ladi.
        Vaqt: 10:00
    """.trimIndent()

    println(xabar)
}

fun main() {
    val yol = """C:\Users\Husanboy\hujjatlar"""
    val json = """{"ism": "Malika", "ball": 88}"""

    println(yol)
    println(json)
}

fun main() {
    val kirish = "   Husanboy   "

    println("[$kirish]")
    println("[${kirish.trim()}]")
    println("[${kirish.trimStart()}]")
    println("[${kirish.trimEnd()}]")
}

fun main() {
    val jumla = "olma,anor,uzum,shaftoli"

    val mevalar = jumla.split(",")
    println(mevalar.size)
    println(mevalar[0])
    println(mevalar)

    println(mevalar.joinToString(" | "))
    println(mevalar.joinToString(", ", "[", "]"))
    println(jumla.replace(",", " va "))
}

fun main() {
    val a = "salom"
    val b = "salom"
    val c = buildString { append("sa"); append("lom") }

    println(a == b)
    println(a == c)
    println(a === c)
    println("SALOM".equals("salom", ignoreCase = true))
}

fun main() {
    val fayl = "hisobot.pdf"

    println(fayl.startsWith("hisobot"))
    println(fayl.endsWith(".pdf"))
    println(fayl.endsWith(".PDF"))
    println(fayl.endsWith(".PDF", ignoreCase = true))

    println("Olma".padEnd(12) + "12000")
    println("42".padStart(6, '0'))
    println("-".repeat(20))
}

fun main() {
    val bosh = ""
    val boshliq = "   "
    val toliq = "matn"

    println(bosh.isEmpty())
    println(boshliq.isEmpty())
    println(boshliq.isBlank())
    println(toliq.isNotBlank())

    val kiritilgan: String? = null
    println(kiritilgan.isNullOrBlank())
}

fun main() {
    val soz = "dastur"

    for (harf in soz) {
        print("$harf-")
    }
    println()

    println(soz.count { it == 'a' })
    println(soz.filter { it in "aeiou" })
    println(soz.map { it.uppercaseChar() }.joinToString(""))
}

fun main() {
    val ball = 87.456
    val son = 42

    println("%.2f".format(ball))
    println("%05d".format(son))
    println("%-10s|".format("chap"))
    println("%10s|".format("o'ng"))
}