Grammatic structure of switch statement

switch(variable){
case condition: //processing;
               break;
case condition: //processing;
               break;
     default:  //processing;
               break;
}

-Although the default label is customarily written at the very end, ** There is no problem if you write something other than the last **

・ If you forget to write the break statement **, you will proceed to the processing of the next condition ** (fallthrough)

What can be written in the case value

Case value: A value / condition used for branching.

·constant **-The same type as or compatible with the variable type described in the conditional expression **

Things that cannot be written in the case value

·variable **-Types that are incompatible with the variable types described in the conditional expression ** ** ・ null ** ** ・ Long type ** ** ・ Boolean type **

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