Java中 map.values转换为list或者string[]

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@Test
public  void  testMap2List()  throws  Exception{
     Map<String, String> map =  new  HashMap<String, String>();
     map.put( "1" "AA" );
     map.put( "2" "BB" );
     map.put( "3" "CC" );
     map.put( "4" "DD" );
 
     Collection<String> valueCollection = map.values();
     final  int  size = valueCollection.size();
 
     List<String> valueList =  new  ArrayList<String>(valueCollection);
 
     String[] valueArray =  new  String[size];
     map.values().toArray(valueArray);
}

原文地址   https://www.cnblogs.com/hqbhonker/p/5196359.html

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转载自www.cnblogs.com/ywb2018/p/10075872.html