newbies question

[yiannistamv]

i am reading a book about c for engineers and in the chapter for switch does not have an example or a mention how i can have a case with 2 or 3 nbrs i mean
switch(a)
{
case(1)(2): ...

statements

break;
case(3):..........
can someone help me?

[laserlight]

You would typically make use of fall through, e.g.,

switch (a)
{
case 1:
case 2:
    statement;
    break;
case 3:
case 4:
case 5:
    statement;
    break;
default:
    statement;
}