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+package innovimax.mixthem.operation;%0A%0A/**%0A* %3Cp%3EThis is a enumeration of alternation mode.%3C/p%3E%0A* %3Cp%3EHere are the modes:%3C/p%3E%0A* %3Cul%3E%0A* %3Cli%3E_NORMAL: alternate files each turn%3C/li%3E%0A* %3Cli%3E_RANDOM: alternate files randomly%3C/li%3E%0A* %3C/ul%3E%0A* @author Innovimax%0A* @version 1.0%0A*/%0Apublic enum AltMode %7B%09%0A%09_NORMAL,%0A%09_RANDOM;%0A%7D%0A

Create AltMode.java