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Asked: 2026-06-01T10:24:54+00:00

I was reading some tutorial where I came across terms like Key<Car> rootKey =

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I was reading some tutorial where I came across terms like
Key<Car> rootKey = new Key<Car>(Car.class, 959);
What does <Car> mean in this code? Why are these “<>” symbols used here? Please help.

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  1. Editorial Team

    The in your snippet represents a generic type specifier. You can instantiate class Key with a type other than Car and its methods will be type-safe for that variable at compile time.

    For example, the following statement is type-safe, just as your example is:

    Key<String> rootKey = new Key<String>(String.class, "someString");

    See http://docs.oracle.com/javase/tutorial/java/generics/gentypes.html for more information.

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