Code that compiles may not run successfully. In that case, an exception will be thrown.

This code snippet attempts to get the length of a null string, which results in a NullPointerException. We will see later how null works in Kotlin, as there are quite a few differences from other languages like Java. But, in the end, if you somehow manage to try accessing a property or calling a function on null, it is likely to result in a NullPointerException.

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Custom Exception Classes Exceptions Exceptions and the Call Stack Jobs Cancel When They Crash Multiple catch Blocks Parent Jobs Cancel When a Child Crashes Throwing Exceptions try and catch try as an Expression
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