From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../hjp5/examples/URLLaden.java                    | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/URLLaden.java

(limited to 'Master/Reference Architectures and Patterns/hjp5/examples/URLLaden.java')

diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/URLLaden.java b/Master/Reference Architectures and Patterns/hjp5/examples/URLLaden.java
new file mode 100644
index 0000000..ca55ceb
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/hjp5/examples/URLLaden.java	
@@ -0,0 +1,82 @@
+/* URLLaden.java */
+
+import java.applet.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.util.*;
+import java.net.*;
+
+class URLButton
+extends Button
+{
+  private URL url;
+
+  public URLButton(String label, URL url)
+  {
+    super(label);
+    this.url = url;
+  }
+
+  public URL getURL()
+  {
+    return url;
+  }
+}
+
+public class URLLaden
+extends Applet
+implements ActionListener
+{
+  Vector buttons;
+
+  public void init()
+  {
+    super.init();
+    setLayout(new FlowLayout());
+    addNotify();
+    buttons = new Vector();
+    for (int i=1; ; ++i) {
+      String s = getParameter("button"+i);
+      if (s == null) {
+        break;
+      }
+      try {
+        StringTokenizer st = new StringTokenizer(s,",");
+        String label = st.nextToken();
+        String urlstring = st.nextToken();
+        URL url;
+        if (urlstring.charAt(0) == '=') {
+          urlstring = urlstring.substring(1);
+          url = new URL(getDocumentBase(),urlstring);
+        } else {
+          url = new URL(urlstring);
+        }
+        URLButton button = new URLButton(label,url);
+        button.addActionListener(this);
+        add(button);
+        buttons.addElement(button);
+      } catch (NoSuchElementException e) {
+        System.out.println("Button"+i+": "+e.toString());
+        break;
+      } catch (MalformedURLException e) {
+        System.out.println("Button"+i+": "+e.toString());
+        break;
+      }
+    }
+  }
+
+  public void actionPerformed(ActionEvent event)
+  {
+    URLButton source = (URLButton)event.getSource();
+    Enumeration en = buttons.elements();
+    while (en.hasMoreElements()) {
+      URLButton button = (URLButton)en.nextElement();
+      if (button == source) {
+        System.out.println(
+          "showDocument("+button.getURL().toString()+")"
+        );
+        getAppletContext().showDocument(button.getURL());
+      }
+    }
+  }
+}
\ No newline at end of file
-- 
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