23.What is meant by a keyword or reserved word? List all the keywords that are used in the C++ language. 24.What are the rules to be followed for forming a user defined identifier in C++? 25.Summarise...

23.What is meant by a keyword or reserved word? List all the keywords that are used in the C++ language.

24.What are the rules to be followed for forming a user defined identifier in C++?

25.Summarise the various data types that are supported in C++.

26.How do the following data types different from one another?

(a) short (b) signed

(c) unsigned (d) hexadecimal

(e) octal (f) long