class MyObj{
String name;
int value;
...
}

List<MyObj> list = new ArrayList<>();
list.add(new MyObj("name1", 31));
list.add(new MyObj("name1", 442));
list.add(new MyObj("name2", 213));
list.add(new MyObj("name1", 31));
list.add(new MyObj("name2", 341));
list.add(new MyObj("name3", 131));