3 files changed, 69 insertions, 0 deletions
diff --git a/Java-Kompendium/kap20/1/src/main/java/App.java b/Java-Kompendium/kap20/1/src/main/java/App.java
new file mode 100644
index 0000000..8a3b955
--- /dev/null
+++ b/Java-Kompendium/kap20/1/src/main/java/App.java
@@ -0,0 +1,8 @@
+public class App {
+    public static void main(String[] args) {
+        var server = new Server();
+        server.start();
+
+        Client.client();
+    }
+}
diff --git a/Java-Kompendium/kap20/1/src/main/java/Client.java b/Java-Kompendium/kap20/1/src/main/java/Client.java
new file mode 100644
index 0000000..aa17571
--- /dev/null
+++ b/Java-Kompendium/kap20/1/src/main/java/Client.java
@@ -0,0 +1,32 @@
+import java.net.Socket;
+import java.io.*;
+
+public class Client {
+    public static void client() {
+        try {
+            Socket socket = new Socket("127.0.0.1", 2000);
+            InputStreamReader isr1 = new InputStreamReader(System.in);
+            BufferedReader br1 = new BufferedReader(isr1);
+
+            System.out.print("Geben Sie den ersten Wert ein: ");
+            String nachricht1 = br1.readLine();
+
+            System.out.print("Geben Sie den zweiten Wert ein: ");
+            String nachricht2 = br1.readLine();
+
+            OutputStreamWriter osw = new OutputStreamWriter(socket.getOutputStream());
+            PrintWriter pw = new PrintWriter(osw);
+
+            pw.print(nachricht1 + "\n");
+            pw.print(nachricht2 + "\n");
+            pw.flush();
+
+            InputStreamReader isr2 = new InputStreamReader(socket.getInputStream());
+            BufferedReader br2 = new BufferedReader(isr2);
+            String ergebnis = br2.readLine();
+            System.out.println("Ergebnis: " + ergebnis);
+        } catch (IOException e) {
+            System.out.println(e);
+        }
+    }
+}
diff --git a/Java-Kompendium/kap20/1/src/main/java/Server.java b/Java-Kompendium/kap20/1/src/main/java/Server.java
new file mode 100644
index 0000000..1474b9c
--- /dev/null
+++ b/Java-Kompendium/kap20/1/src/main/java/Server.java
@@ -0,0 +1,29 @@
+import java.io.*;
+import java.net.Socket;
+import java.net.ServerSocket;
+
+public class Server extends Thread {
+    @Override
+    public void run() {
+        try {
+            ServerSocket serverSocket = new ServerSocket(2000);
+            Socket client = serverSocket.accept();
+            InputStreamReader isr = new InputStreamReader(client.getInputStream());
+            BufferedReader br = new BufferedReader(isr);
+
+            String nachricht1 = br.readLine();
+            String nachricht2 = br.readLine();
+
+            int wert1 = Integer.parseInt(nachricht1);
+            int wert2 = Integer.parseInt(nachricht2);
+            int ergebnis = wert1 * wert2;
+
+            OutputStreamWriter osw = new OutputStreamWriter(client.getOutputStream());
+            PrintWriter pw = new PrintWriter(osw);
+            pw.print(ergebnis + "\n");
+            pw.flush();
+        } catch (IOException e) {
+            System.out.println(e);
+        }
+    }
+}