Part of the concrete syntax given in the 1960 Report on ALGOL 60 is as follows: I -> if then if then else I begin end In the 1963 report on Algol, this was changed to: I ; then if then else -> statement> I begin end statement> -> Show using examples what if-statements in Algol looked like (with one or more statements in the then/else-parts).
Demonstrate with an example why the original syntax was unsuitable and why the revised syntax is an improvement.

When is it appropriate to use an absolute reference

What makes myhexadecimalnumber a child of mynumber? which methods does myhexadecimalnumber inherit directly from the mynumber class? what can an instance of the mynumber class do? what can an instance of the myhexadecimalnumber class do? which methods are overridden? why are they overridden? how many examples of overloading are there? why was this done? where is the super keyword used? what is it doing? why isn’t the incoming value set immediately in the second myhexadecimalnumber constructor? how many examples can you find of an inherited method being called?

How can you make your column headings stand out?