Double brace (#1798)
* BAL-36 File size api in java and apache commons IO * BAEL-282 grep in java - fixes after code review * BAEL-519 Added support for disruptor library * BAEL-519 Added support for disruptor library * BAEL-519 Added support for disruptor library * BAEL-519 Added support for disruptor library * BAEL-519 Added support for disruptor library * BAEL-519 Added support for disruptor library * BAEL-519 Added support for disruptor * BAEL-519 Moved all supporting classes to main source * BAEL-519 Moved all supporting classes to main source * BAEL-519 Moved asserts and test classes in test folder. * BAEL-519 moved test related producer and consumer to src. * BAEL-586 Guide to Guava BiMap. * BAEL-587 formatted code. * BAEL-519 LMAX Disruptor * BAEL-587 resolved merge * BAEL-587 Resolved merge * BAEL-519 Removed disruptor link. * BAEL-519 Reverted Guava changes * RFQ-587 Added disruptor as a separate module. * BAEL-519 Disruptor changes. * BAEL-519 Removed disruptor from core-java module. * BAEL-729 Expose additional information programmatically in /info endpoint of actuator. * BAEL-824 Usage of Double braces in Java. * Deleted sample project * updated test and names.
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package com.baeldung.java.doublebrace;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.stream.Stream;
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import static java.util.stream.Collectors.toSet;
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import static org.junit.Assert.assertTrue;
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import org.junit.Test;
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public class DoubleBraceTest {
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@Test
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public void whenInitializeSetWithoutDoubleBraces_containsElements() {
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final Set<String> countries = new HashSet<String>();
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countries.add("India");
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countries.add("USSR");
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countries.add("USA");
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assertTrue(countries.contains("India"));
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}
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@Test
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public void whenInitializeSetWithDoubleBraces_containsElements() {
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final Set<String> countries = new HashSet<String>() {
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{
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add("India");
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add("USSR");
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add("USA");
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}
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};
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assertTrue(countries.contains("India"));
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}
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@Test
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public void whenInitializeUnmodifiableSetWithDoubleBrace_containsElements() {
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final Set<String> countries = Collections.unmodifiableSet(Stream.of("India", "USSR", "USA").collect(toSet()));
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assertTrue(countries.contains("India"));
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}
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}
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