java9list

java9list

List<String> list=List.of("apple","bat");
List<String> list=List.of("apple",null); // It doesn't allow null values - NullPointerException will be thrown if added.

Set<String> set1= Set.of("apple","bat");
Set<String> set2= Set.of();

Map<Integer,String> emptyMap = Map.of();
Map<Integer,String> map = Map.of(1, "Apple", 2, "Bat", 3, "Cat");


Map<Integer,String> mapEntry = Map.ofEntries(
    Map.entry(1,"Apple"),
    Map.entry(2,"Bat"),
    Map.entry(3,"Cat"));

List.of()

List<String> list=List.of("apple","bat");
List<String> list=List.of("apple",null); // It doesn't allow null values - NullPointerException will be thrown if added.