21 lines
506 B
Java
21 lines
506 B
Java
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// collections/PlusTen.java
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// (c)2021 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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// {NewFeature} Since JDK 16
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record PlusTen(int x) {
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PlusTen {
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x += 10;
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}
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// Adjustment to field can only happen in
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// the constructor. Still not legal:
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// void mutate() { x += 10; }
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public static void main(String[] args) {
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System.out.println(new PlusTen(10));
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}
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}
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/* Output:
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PlusTen[x=20]
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*/
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