Answer 1

https://www.sololearn.com/discuss/397159/?ref=app
https://www.sololearn.com/discuss/1694248/?ref=app
https://www.sololearn.com/discuss/1501957/?ref=app
https://www.sololearn.com/discuss/43126/?ref=app
https://www.sololearn.com/discuss/1333843/?ref=app
https://www.sololearn.com/discuss/83570/?ref=app
https://www.sololearn.com/discuss/74047/?ref=app
https://www.sololearn.com/discuss/1677601/?ref=app
https://www.sololearn.com/discuss/1121957/?ref=app
https://www.sololearn.com/discuss/847919/?ref=app
https://www.sololearn.com/discuss/148134/?ref=app

Answer 2

If a case matches without break, program would also run the following cases (even thought they didn't match) until a break statement is run (or until there are no cases left).

Answer 3

with this word, you interrupt the execution of the switch construct

Answer 4

Here's an example in Java:
https://code.sololearn.com/c3wC71wvuznm/?ref=app