class A(val n: Int, val s: String) { val f: Float = 1.0f fun foo() { } override fun equals(other: Any?): Boolean{ if (this === other) return true if (other?.javaClass != javaClass) return false other as A if (n != other.n) return false if (s != other.s) return false if (f != other.f) return false return true } override fun hashCode(): Int{ var result = n result += 31 * result + s.hashCode() result += 31 * result + f.hashCode() return result } }