General practice to specify a break after a default clause? [duplicate]

This question already has answers here: 开发者_高级运维 Closed 12 years ago.

Possible Duplicate:

break in a case with return.. and for default

If I have a switch statement:

switch()
{
    case 1: ...
    case 2: ...
    ...
    default:
        break;
}

Is there any reason for the break in the default clause? I see this in quite a few places, but isn't it unnecessary? What is the general practice?

Can another case label come after the default clause?

---

Can another case label come after the default clause?

Yes, you are allowed to place the default clause anywhere within the switch block.