Mavenized

src/main/java/Potato.java

@@ -0,0 +1,53 @@
+import java.util.List;
+import java.util.ArrayList;
+
+public class Potato implements Tuber {
+
+  private final List<Condiment> condiments = new ArrayList<Condiment>();
+
+  public static void main(String[] args) {
+    Potato potato = new Potato();
+    GLaDOS glados = new GLaDOS();
+    if (potato.prepare()) System.out.println("Of course potato is prepared and delicious.");
+    else System.err.println("Fatal error! How could potato not be delicious?");
+  }
+
+  public boolean prepare() {
+    this.addCondiments("sour cream", "chives", "butter");
+    return this.isDelicious();
+  }
+
+  public void addCondiments(String... names) {
+    synchronized (condiments) {
+      for (String condimentName : names) condiments.add(new Condiment(condimentName));
+    }
+  }
+
+  @Override
+  public boolean isDelicious() {
+    return true; // obviously, potatos are always delicious
+  }
+
+  private class Condiment {
+    private final String name;
+
+    public Condiment(String name) {
+      this.name = name;
+    }
+
+    public String getName() {
+      return this.name;
+    }
+  }
+
+  private static class GLaDOS extends Potato {
+      public GLaDOS() {
+          System.out.println("Oh hi, how are you holding up? BECAUSE I'M A POTATO... clap clap clap... oh good, my slow clap processor made it into this thing, at least we have that.");
+      }
+
+      @Override
+      public boolean isDelicious() {
+        return false; // robots are not delicious
+      }
+  }
+}

src/main/java/Tuber.java

@@ -0,0 +1,3 @@
+public interface Tuber {
+  public boolean isDelicious();
+}