You could have the following: public Map<Integer, List<String>> getMap(List<String> strings) { return strings.stream().collect( Collectors. ... <看更多>

Java8 #ArrayList#HashMap. ... <看更多>

HashSet;. import java.util.List;. import java.util.Map;. import java.util.Set;. import java.util.stream.Collectors;. import org.apache.commons.lang3.tuple. ... <看更多>

Can anyone get some advice or code snippets? package com.example; import com.google.common.collect.Lists; import java.util.HashMap ... ... <看更多>