Question

What are a null statement and compound statement?

Answer 1

null statement: The “null or empty statement” is a statement containing only a semicolon. It takes the flowing form: ;
// it is a null statement

compound Statement:
In C++, a group of statements enclosed by pair of braces {} is called a compound statement or a block.
The general format of compound statement is:
{
statement1;
statement2;
statement3;
}