Branching

• if (i < 2)
a =3;
else if (i < 3)
a = 4;
else {
a = 5;
b = 2;
}
• The standard branching operation is the if else. Each if takes a boolean expression. (Be careful with (a=3) in some languages and versions).
• Programs are made up of series of statements. Assignment is one type of statement. If is another.
• If is a statement that contains statements.
• If you want to use multiple statements where one should go, you need a compound statement. That's what {} is for.
• You can use a switch statement to, and of course an if then else cascade.