Today to learn the main content of the branch structure, if the branch structure, if the else branch structure, if, else if branch structure, branch structure of the cover today have certain contact, so today's content can understand understand, come on !
Preview homework yesterday, today there is a classmate ask the question, unique meaning, for everyone to see, in the case of not run, how many people will be wrong ,

Int num=6;

Boolean ret=num & gt; 5 & amp; & (num - & lt; 20 | | num++ & gt; 10);

System. The out. Println (" num: "+ num);
System. The out. Println (" ret: "+ ret);

The results of the output will be what?

Finally, as usual, upload notes for card (words too ugly, can spray),