For the Reader on the Go: Readers know the struggle: You're halfway through about three books at once (fiction, nonfiction, and a wild card pick, of course), but you can't fit them all in your backpack to take with you on the train. Well, with a Kindle Paperwhite, she can.
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The toString method that gets called depends on the type of the receiver object. This isn’t determined at compile time, but instead a lookup that happens at runtime. The compiler effectively generates a switch statement that looks at the result of getClass and then calls the right method. It’s smarter than that for performance I’m sure, but conceptually that’s what it’s doing.
McDonald’s ended a partnership with IBM in 2024 that was testing automated orders at its drive-thrus. The company is now working with Google on AI systems.