JAVA 2013/04/21

Three kinds of variable
1.Field (attribute/property instance member)
   a.Declare in the brace of class.
   b.It gets default value.
2.Local variable
   a.Declare in the brace of method.
   b.It is not able to use before initalize.
3.Parameter(Argument)
   a.Declare in the parameter list.
   b.The value of the parameter is assigned by the method calls statement.

parameter變數存class位址

oriented導向的

multi-KK[ˋmʌltɪ]多方面的

除了布林值不可作基本運算也不可關係運算

關係是 = = 參考位址與字面值皆相等則true

equals字面值相等即true