22 lines
500 B
Plaintext
22 lines
500 B
Plaintext
Combine inheritance and array covariance, and the results can potentially get nasty. Together, they allow you to write array stores that will compile, but cause errors at runtime.
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== Noncompliant Code Example
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----
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public class Bowl {
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abstract class Fruit { }
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class Apple : Fruit { }
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class Orange : Fruit { }
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Fruit [] fruits;
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public void fillBowl(){
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fruits = new Apple[30];
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fruits[0] = new Orange(); // Noncompliant; this compiles but raises exception at runtime
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}
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}
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----
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