20 lines
614 B
Java
20 lines
614 B
Java
// generics/SelfBoundingAndCovariantArguments.java
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// ©2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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interface SelfBoundSetter<T extends SelfBoundSetter<T>> {
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void set(T arg);
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}
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interface Setter extends SelfBoundSetter<Setter> {}
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public class SelfBoundingAndCovariantArguments {
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void testA(Setter s1, Setter s2, SelfBoundSetter sbs) {
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s1.set(s2);
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// s1.set(sbs); // Error:
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// set(Setter) in SelfBoundSetter<Setter>
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// cannot be applied to (SelfBoundSetter)
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}
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}
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