Java map string to list

    Map<String, List<String>> myMaps = new HashMap<String, List<String>>();
    for (DataObject item : myList) {
        if (!myMaps.containsKey(item.getKey())) {
            myMaps.put(item.getKey(), new ArrayList<String>());
        }
        myMaps.get(item.getKey()).add(item.getValue());
    }

Source: stackoverflow.com

Similar codes

2 votes158 views2 answers
Convert integer array to string array
Java
1 vote184 views2 answers
Adb: command not found
Java
5 votes253 views2 answers
Spring boot security maven
Java Spring
13 votes167 views3 answers
Javascript loop through arra
Java
0 vote154 views1 answer
Explain java coding standards for classes
Java
0 vote145 views1 answer
What is datasnapshot.getkey() in android studio
Java
0 vote145 views1 answer
How to create space between element in vbox in javafx
Java
2 votes176 views1 answer
How to pass enum in postman body
Java
1 vote148 views3 answers
How to get time in dd/mm/yyyy format in java
Java
0 vote149 views1 answer
How to check if a player has broken a block spigot
Java