directory structure change, organize by class number as opposed to mod number

Signed-off-by: Amrit Panesar <apanesar@4195tech.com>

COM107/classwork/DebugSeven4.java

@@ -0,0 +1,19 @@
+public class DebugSeven4
+{
+  public static void main(String[] args)
+  {
+    String aString = "The sly brown fox jumped over the lazy dog";
+
+    int numLetters = 0;
+    int stringLength = aString.length();
+
+    for(int i=0; i < stringLength; i++)
+    {
+      char ch = Character.toLowerCase(aString.charAt(i));
+
+      if(Character.isLetter(ch))
+      numLetters++;
+    }
+    System.out.println("The number of letters is " + numLetters);
+  }
+}