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package enumt;

import java.util.EnumMap;

import java.util.Map;

/*

* */

enum Phase{

SOLID,

GAS,

LIQUID;

enum Transition{

Melt;

}

}

public class EnumMapT {

public static void main(String[] args) {

/*

EnumMap 采用键类型的构造器，是一个泛型的类型令牌

* */

EnumMap<Phase,Map<Phase, Phase.Transition>> phaseMapEnumMap=new EnumMap<Phase, Map<Phase, Phase.Transition>>(Phase.class);

}

}