How to convert List into Map>, with Java 8 streams and custom List and Map suppliers?

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自闭症患者 2020-11-30 03:55

It\'s easy to convert List into Map>. For example:

public Map> ge


      
      
        
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                   孤街浪徒
                                             
                
                
                (楼主)
            
              
              
                2020-11-30 04:29
              

            
            
                        
I had a similar situation. I solved it like:

Map> map = stringList.stream().collect(Collectors.toMap(str -> str, str -> populateList(str)));


And populateList() is: 

private List