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public static<T> List<T> merge(List<T> list1, List<T> list2)
{List<T> list = new ArrayList<>();list.addAll(list1);list.addAll(list2);return list;
}
public static<T> List<T> merge2(List<T> list1, List<T> list2)
{List<T> list = new ArrayList<>(list1);list.addAll(list2);return list;
}
public static<T> List<T> merge3(List<T> list1, List<T> list2)
{return new ArrayList<T>() {{addAll(list1);addAll(list2);}};
}
public static List<String> merge4(List<String> list1, List<String> list2)
{List<String> list = new ArrayList<>();Collections.addAll(list, list1.toArray(new String[0]));Collections.addAll(list, list2.toArray(new String[0]));return list;
}public static<T> List<T> merge5(List<T> list1, List<T> list2)
{return Stream.of(list1, list2).flatMap(x -> x.stream()).collect(Collectors.toList());
}public static<T> List<T> merge6(List<T> list1, List<T> list2)
{List<T> list = new ArrayList<>();Stream.of(list1, list2).forEach(list::addAll);return list;
}// Generic method to join two lists in Java
public static<T> List<T> merge7(List<T> list1, List<T> list2)
{List<T> list = list1.stream().collect(Collectors.toList());list.addAll(list2);return list;
}// Generic method to join two lists in Java
public static<T> List<T> merge8(List<T> list1, List<T> list2) {return Lists.newArrayList(Iterables.concat(list1, list2));
}// Generic method to join two lists in Java
public static<T> List<T> merge9(List<T> list1, List<T> list2)
{List<T> list = Lists.newArrayList();Iterables.addAll(list, list1);Iterables.addAll(list, list2);return list;
}// Generic method to join two lists in Java
public static<T> List<T> merge10(List<T> list1, List<T> list2) {return ListUtils.union(list1, list2);
}