updated

Author: Fabrizio

Command/src/client/Client.java

@@ -6,10 +6,11 @@
 
 public class Client {
 
-public static void main(String[] args) {
+public static void main(String[] args) throws InterruptedException {
 Invoker invoker = new Invoker(new Receiver());
 invoker.setCommand(TypeCommand.OPEN);
 invoker.execute();
+Thread.sleep(1500);
 invoker.setCommand(TypeCommand.EXIT);
 invoker.execute();
 }

Command/src/command/ExitCommand.java

@@ -12,7 +12,7 @@ public ExitCommand(Receiver receiver) {
 
 @Override
 public void execute() {
-receiver.close();
+receiver.exit();
 }
 
 }

Command/src/receiver/Receiver.java

@@ -3,10 +3,10 @@
 public class Receiver {
 
 public void open() {
-System.out.println("open.");
+System.out.println("open");
 }
 
-public void close() {
-System.out.println("close.");
+public void exit() {
+System.out.println("exit");
 }
 }

Strategy/.classpath

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+<classpathentry kind="src" path="src"/>
+<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+<classpathentry kind="output" path="bin"/>
+</classpath>

Strategy/.gitignore

@@ -0,0 +1 @@
+/bin/

Strategy/.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+<name>Strategy</name>
+<comment></comment>
+<projects>
+</projects>
+<buildSpec>
+<buildCommand>
+<name>org.eclipse.jdt.core.javabuilder</name>
+<arguments>
+</arguments>
+</buildCommand>
+</buildSpec>
+<natures>
+<nature>org.eclipse.jdt.core.javanature</nature>
+</natures>
+</projectDescription>

Strategy/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

Strategy/src/ContextVisit.java

@@ -0,0 +1,23 @@
+
+public class ContextVisit<T> {
+
+private Visit<T> visit;
+
+private Node<T> root;
+
+public ContextVisit(Node<T> root) {
+this.root = root;
+}
+
+public void setRoot(Node<T> root) {
+this.root = root;
+}
+
+public void setVisit(Visit<T> visit) {
+this.visit = visit;
+}
+
+public void visit() {
+visit.visit(root);
+}
+}

Strategy/src/DeepVisit.java

@@ -0,0 +1,11 @@
+
+public class DeepVisit<T> implements Visit<T> {
+
+@Override
+public void visit(Node<T> root) {
+System.out.print(root);
+for(Node<T> node: root.getChildren())
+visit(node);
+}
+
+}

Strategy/src/LevelVisit.java

@@ -0,0 +1,16 @@
+import java.util.ArrayList;
+
+public class LevelVisit<T> implements Visit<T> {
+
+@Override
+public void visit(Node<T> root) {
+ArrayList<Node<T>> queue = new ArrayList<Node<T>>();
+queue.add(root);
+while(!queue.isEmpty()) {
+System.out.print(queue.get(0));
+queue.addAll(queue.get(0).getChildren());
+queue.remove(0);
+}
+}
+
+}