21 lines
537 B
Java
21 lines
537 B
Java
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// patterns/TestSingle.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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public class TestSingle {
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public static void main(String[] args) {
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Single<String> ss = new Single<>("hello");
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System.out.println(ss.get());
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try {
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Single<String> ss2 = new Single<>("world");
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} catch(Exception e) {
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System.out.println(e.getMessage());
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}
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}
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}
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/* Output:
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hello
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Attempt to reassign Single<String>
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*/
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