Review Java Basics

1. Switch statement format:

switch (expression) {

Case value 1:

Statement body 1;

Break;//break can be omitted, but there will be case penetrating phenomenon, it is recommended not to omit

Case Value 2:

Statement body 2;

Break

...

default://to the incorrect situation to give hints, can be omitted, the proposal is not omitted, can be in any position, but suggested in the last

Statement body n+1;

Break

}

An expression can be an enumeration after Byte,short,int,char,jdk5, and JDK7 can be a string later.

Review Java Basics