22 lines
598 B
Java
22 lines
598 B
Java
// generics/Manipulation.java
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// (c)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://OnJava8.com for more book information.
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// {CompileTimeError} (Will not compile)
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class Manipulator<T> {
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private T obj;
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public Manipulator(T x) { obj = x; }
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// Error: cannot find symbol: method f():
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public void manipulate() { obj.f(); }
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}
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public class Manipulation {
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public static void main(String[] args) {
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HasF hf = new HasF();
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Manipulator<HasF> manipulator =
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new Manipulator<>(hf);
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manipulator.manipulate();
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}
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}
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