@@ -0,0 +1,202 @@
+/**%0A * This exception represents two given lengths are not matched.%0A */%0Apublic class LengthUnmatchedException extends Exception%7B%0A    public LengthUnmatchedException(String s)%7B%0A        super(s);%0A    %7D%0A%7D%0A

Create LengthUnmatchedException class.