Kotlin hashCode() and equals()

SAMER SAEID answered on June 14, 2022 Popularity 4/10 Helpfulness 1/10

answer Kotlin hashCode() and equals()

Kotlin hashCode() and equals()

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data class User(val name: String, val age: Int)
fun main(args: Array<String>) {
    val u1 = User("John", 29)
    val u2 = u1.copy()
    val u3 = u1.copy(name = "Amanda")
   println("u1 hashcode = ${u1.hashCode()}")
    println("u2 hashcode = ${u2.hashCode()}")
    println("u3 hashcode = ${u3.hashCode()}")

    if (u1.equals(u2) == true)
        println("u1 is equal to u2.")
    else
        println("u1 is not equal to u2.")

    if (u1.equals(u3) == true)
        println("u1 is equal to u3.")
    else
        println("u1 is not equal to u3.")
}

Popularity 4/10 Helpfulness 1/10 Language kotlin

Source: Grepper

Tags: kotlin

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Contributed on Jun 14 2022

SAMER SAEID

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Kotlin hashCode() and equals()

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