Previous topic | Next topic | Ada Home Page | Index

If-then statements

A basic if-then statement is used when the choice is whether to take an action or not; there is no alternative action.

Statement Form

	statement_before;

	if test then
		statements(s)_1;
	end if;

	statement_after;

Statement semantics

The test is an expression evaluating to TRUE or FALSE 

	value_1 relational_operator value_2
where the relational operators are one of: 
		=  /=  <  >  <=  >=

An example program shows the use of an if-then statement to decide whether or not to print a message.

Previous topic | Next topic | Ada Home Page | Index
c-lokan@adfa.oz.au / 13 Feb 96