kotlin variable possiblement null
var message: String? = "My message can possibly be null !"
message?.toUpperCaset()kotlin variable possiblement null
var message: String? = "My message can possibly be null !"
message?.toUpperCaset()kotlin variable possiblement null
var message: String? = "My message can possibly be null !"
if (message != null) message.toUpperCase()Copyright © 2021 Codeinu
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