More examples testing.

examples/test/src/main/java/App.java

@@ -1,12 +1,21 @@
-/*
- * This Java source file was generated by the Gradle 'init' task.
- */
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.List;
+
 public class App {
-    public String getGreeting() {
-        return "Hello world.";
+    public static void main(String[] args) {
+        new App().cat(args[0]);
     }
 
-    public static void main(String[] args) {
-        System.out.println(new App().getGreeting());
+    public void cat(String name) {
+        try {
+            final List<String> content = Files.readAllLines(Paths.get(name));
+            for (String line : content) {
+                if (!line.startsWith("#")) System.out.println(line);
+            }
+        } catch (IOException e) {
+            System.out.println(e);
+        }
     }
-}
+}

examples/test/src/test/java/AppTest.java

@@ -1,11 +1,14 @@
 /*
  * This Java source file was generated by the Gradle 'init' task.
  */
+
 import org.junit.Test;
+
 import static org.junit.Assert.*;
 
 public class AppTest {
-    @Test public void testAppHasAGreeting() {
+    @Test
+    public void testAppHasAGreeting() {
         App classUnderTest = new App();
         assertNotNull("app should have a greeting", classUnderTest.getGreeting());
     }