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Last active August 8, 2018 17:23
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example 1 [java is dead, long live Kotlin - 2018-08 post@thumbtack]
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long-live-kotlin-01-nullability.kt
val nonNull: String = null // compilation error
val possiblyNull: String? = “but not null” // this works!
// compilation error, String method call on a nullable String
val uppercase = possiblyNull.toUpperCase()
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