我有一个雇员对象,定义如下:
Employee class contains 3 attributes :
String employeID
//payCodeType can only be T/Y/N/W/M/F
String payCodeType
String serial
该列表包含重复的值,如下所示:
employeID - emp01
payCodeType - M
serial 1
employeID - emp01
payCodeType - M
serial 2
employeID - emp01
payCodeType - F
serial 3
employeID - emp02
payCodeType - F
serial 1
employeID - emp02
payCodeType - F
serial 2
employeID - emp02
payCodeType - F
serial 3
employeID - emp02
payCodeType - F
serial 4
employeID - emp02
payCodeType - F
serial 5
employeID - emp03
payCodeType - T
serial 3
employeID - emp04
payCodeType - T
serial 1
employeID - emp04
payCodeType - T
serial 2
employeID - emp04
payCodeType - T
serial 3
employeID - emp05
payCodeType - F
serial 1
employeID - emp05
payCodeType - F
serial 1
...
基本上,当数据重复且规则如下时,我需要显示一条错误消息:
请问我如何在Java 8中实现它?