Doxygen example

Replace the unnecessarily large number of doxygen examples with one
doxygen example.

Examples/java/doxygen/runme.java

@@ -0,0 +1,63 @@
+// This example shows simple usage of the wrapped Shape classes.
+// The main purpose of this example is to show the doxygen comments translation to JavaDoc comments.
+// Users should look at the generated .java files and if javadoc is installed and working on your system,
+// the generated Java docs can be viewed in a browser by opening the javadocs/index.html file.
+
+import java.io.*;
+
+public class runme {
+  static {
+    try {
+        System.loadLibrary("example");
+    } catch (UnsatisfiedLinkError e) {
+      System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
+      System.exit(1);
+    }
+  }
+
+  public static void main(String argv[]) throws InterruptedException, IOException
+  {
+    System.out.println("Creating some objects:");
+    Circle c = example.MakeCircle(10);
+    System.out.println("    Created circle " + c);
+    Square s = example.MakeSquare(10);
+    System.out.println("    Created square " + s);
+    RectangleInt r = example.MakeRectangleInt(10, 20);
+    System.out.println("    Created rectangle " + r);
+
+    System.out.println("\nHere are some properties of the shapes:");
+    Shape[] shapes = {c, s, r};
+    for (int i=0; i<shapes.length; i++) {
+      System.out.println("   " + shapes[i].toString());
+      System.out.println("        area      = " + shapes[i].area());
+      System.out.println("        perimeter = " + shapes[i].perimeter());
+    }
+
+    String command = "javadoc -quiet -public -d javadocs example.java Shape.java Circle.java Square.java RectangleInt.java";
+    System.out.println("\nRunning: " + command);
+    Process p = Runtime.getRuntime().exec(command);
+    int exitCode = p.waitFor();
+    System.out.println("javadoc exited with code " + exitCode);
+
+    BufferedReader stdout = new BufferedReader(new InputStreamReader(p.getInputStream()));
+    BufferedReader stderr = new BufferedReader(new InputStreamReader(p.getErrorStream()));
+
+    String line = null;
+
+    System.out.println("stdout from javadoc:\n");
+    while ((line = stdout.readLine()) != null) {
+      System.out.println(line);
+    }
+
+    System.out.println("\nstderr from javadoc:\n");
+    while ((line = stderr.readLine()) != null) {
+      System.out.println(line);
+    }
+
+    if (exitCode != 0) {
+      System.out.println("No java docs were generated!\n");
+    } else {
+      System.out.println("javadoc ran successfully, open javadocs/index.html in your browser to view the generated java docs.");
+    }
+  }
+}