1 files changed, 35 insertions, 0 deletions
diff --git a/third_party/java/jopt-simple/src/test/java/joptsimple/examples/HelpScreenExample.java b/third_party/java/jopt-simple/src/test/java/joptsimple/examples/HelpScreenExample.java
new file mode 100644
index 0000000000..44f024b793
--- /dev/null
+++ b/third_party/java/jopt-simple/src/test/java/joptsimple/examples/HelpScreenExample.java
@@ -0,0 +1,35 @@
+package joptsimple.examples;
+
+import java.io.File;
+
+import static java.io.File.*;
+import static java.util.Arrays.*;
+
+import joptsimple.OptionParser;
+
+import static joptsimple.util.DateConverter.*;
+
+public class HelpScreenExample {
+    public static void main( String[] args ) throws Exception {
+        OptionParser parser = new OptionParser() {
+            {
+                accepts( "c" ).withRequiredArg().ofType( Integer.class )
+                    .describedAs( "count" ).defaultsTo( 1 );
+                accepts( "q" ).withOptionalArg().ofType( Double.class )
+                    .describedAs( "quantity" );
+                accepts( "d", "some date" ).withRequiredArg().required()
+                    .withValuesConvertedBy( datePattern( "MM/dd/yy" ) );
+                acceptsAll( asList( "v", "talkative", "chatty" ), "be more verbose" );
+                accepts( "output-file" ).withOptionalArg().ofType( File.class )
+                     .describedAs( "file" );
+                acceptsAll( asList( "h", "?" ), "show help" ).forHelp();
+                acceptsAll( asList( "cp", "classpath" ) ).withRequiredArg()
+                    .describedAs( "path1" + pathSeparatorChar + "path2:..." )
+                    .ofType( File.class )
+                    .withValuesSeparatedBy( pathSeparatorChar );
+            }
+        };
+
+        parser.printHelpOn( System.out );
+    }
+}