Added examples.

examples/annotation-processor/java/src/generated/com/example/GeneratedVersion.java

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+/*
+ * This file is automatically generated.
+ * Do not modify! -- ALL CHANGES WILL BE ERASED!
+ */
+package com.example;
+
+import java.util.Date;
+
+/**
+ * Provides semantic version information.
+ *
+ * @author <a href="https://github.com/ethauvin/semver">Semantic Version Annotation Processor</a>
+ */
+public final class GeneratedVersion {
+    public final static String PRERELEASE_PREFIX = "-";
+    public final static String BUILDMETA_PREFIX = "+";
+
+    public final static String PROJECT = "";
+    public final static Date BUILDDATE = new Date(1530506497996L);
+    public final static int MAJOR = 6;
+    public final static int MINOR = 1;
+    public final static int PATCH = 0;
+    public final static String PRERELEASE = "";
+    public final static String BUILDMETA = "";
+
+    /**
+     * The full version string.
+     * <p>
+     * Formatted as:
+     * <blockquote>
+     * <code>MAJOR.MINOR.PATCH[-PRERELEASE][+BUILDMETADATA]</code>
+     * </blockquote>
+     * <p>
+     * For example:
+     * <ul>
+     * <li><code>1.0.0</code></li>
+     * <li><code>1.0.0-beta</code></li>
+     * <li><code>1.0.0+20160124144700</code></li>
+     * <li><code>1.0.0-alpha+001</code></li>
+     * </ul>
+     */
+    public final static String VERSION = Integer.toString(MAJOR) + '.'
+            + Integer.toString(MINOR) + '.'
+            + Integer.toString(PATCH)
+            + preReleaseWithPrefix() + buildMetaWithPrefix();
+
+    /**
+     * Disables the default constructor.
+     *
+     * @throws UnsupportedOperationException If the constructor is called.
+     */
+    private GeneratedVersion()
+            throws UnsupportedOperationException {
+        throw new UnsupportedOperationException("Illegal constructor call.");
+    }
+
+    /**
+     * Returns the build metadata with {@value #BUILDMETA_PREFIX} prefix.
+     *
+     * @return The build metadata, if any.
+     */
+    public static String buildMetaWithPrefix() {
+        return buildMetaWithPrefix(BUILDMETA_PREFIX);
+    }
+
+    /**
+     * Returns the build metadata.
+     *
+     * @param prefix Prefix to prepend.
+     * @return The build metadata, if any.
+     */
+    public static String buildMetaWithPrefix(final String prefix) {
+        if (BUILDMETA.length() > 0 && prefix.length() > 0) {
+            return prefix + BUILDMETA;
+        } else {
+            return BUILDMETA;
+        }
+    }
+
+    /**
+     * Returns the pre-release version with {@value #PRERELEASE_PREFIX} prefix.
+     *
+     * @return The pre-release version, if any.
+     */
+    public static String preReleaseWithPrefix() {
+        return preReleaseWithPrefix(PRERELEASE_PREFIX);
+    }
+
+    /**
+     * Returns the pre-release version.
+     *
+     * @param prefix The prefix to prepend.
+     * @return The pre-release version, if any.
+     */
+    public static String preReleaseWithPrefix(final String prefix) {
+        if (PRERELEASE.length() > 0 && prefix.length() > 0) {
+            return prefix + PRERELEASE;
+        } else {
+            return PRERELEASE;
+        }
+    }
+}

examples/annotation-processor/java/src/main/java/com/example/Example.java

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+package com.example;
+
+import net.thauvin.erik.semver.Version;
+
+import java.text.SimpleDateFormat;
+
+@Version(properties = "version.properties")
+//@Version(
+//    properties = "example.properties",
+//    keysPrefix = "example.",
+//    preReleaseKey = "release",
+//    buildMetaKey = "meta")
+public class Example {
+    public static void main(final String... args) {
+        final SimpleDateFormat sdf = new SimpleDateFormat("EEE, d MMM yyyy 'at' HH:mm:ss z");
+
+        System.out.println("-----------------------------------------------------");
+
+        System.out.println("  Version:" + GeneratedVersion.PROJECT + ' ' + GeneratedVersion.VERSION);
+
+        System.out.println("    Built on:       " + sdf.format(GeneratedVersion.BUILDDATE));
+        System.out.println("    Major:          " + GeneratedVersion.MAJOR);
+        System.out.println("    Minor:          " + GeneratedVersion.MINOR);
+        System.out.println("    Patch:          " + GeneratedVersion.PATCH);
+        System.out.println("    PreRelease:     " + GeneratedVersion.PRERELEASE);
+        System.out.println("    BuildMetaData:  " + GeneratedVersion.BUILDMETA);
+
+        System.out.println("-----------------------------------------------------");
+    }
+}

examples/annotation-processor/java/src/test/java/AppTest.java

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+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+class AppTest {
+    @Test
+    void testAppHasAGreeting() {
+        App classUnderTest = new App();
+        assertNotNull("app should have a greeting", classUnderTest.getGreeting());
+    }
+}