// I'm sorry.

else
{
    //error situation
}

// this is really complicated

没有其他评论了

/**
 * Always returns true.
 */
public boolean isAvailable() {
    return false;
}

永远不要依赖评论……

If you have reached this part in the code, then this program sucks.

Exception up = new Exception("Something is really wrong.");
throw up;  //ha ha