Is an array a primitive type or an object (or something else entirely)?

by

There is a class for every array type, so there’s a class for int[], there’s a class for Foo[]. These classes are created by JVM. You can access them by int[].class, Foo[].class. The direct super class of these classes are Object.class

public static void main(String[] args)
{
    test(int[].class);
    test(String[].class);
}

static void test(Class clazz)
{
    System.out.println(clazz.getName());
    System.out.println(clazz.getSuperclass());
    for(Class face : clazz.getInterfaces())
        System.out.println(face);
}

There’s also a compile-time subtyping rule, if A is subtype of B, A[] is subtype of B[].

More Related Contents:

  1. Difference between Object[] and Array of specific Objects in java
  2. How to read a file and put it into an array of objects?
  3. Array of JSON Object to Java POJO
  4. How to sort an array of objects in Java?
  5. Why isn’t there a java.lang.Array class? If a java array is an Object, shouldn’t it extend Object?
  6. make arrayList.toArray() return more specific types
  7. How to initialize an array of objects in Java
  8. Error: Generic Array Creation [duplicate]
  9. Deep copy of an object array
  10. Java Arrays.asList on primitive array type produces unexpected List type [duplicate]
  11. How can I turn a JSONArray into a JSONObject?
  12. Cast primitive type array into object array in java
  13. JAVA: calculate the average between two or more arrays [closed]
  14. Reading String for list of Integers separated by spaces [duplicate]
  15. Difference between int[] array and int array[]
  16. Sort an array in Java
  17. Converting array to list in Java
  18. Convert integer into byte array (Java)
  19. NullPointerException when Creating an Array of objects [duplicate]
  20. How can I use JavaScript in Java? [closed]
  21. Add JsonArray to JsonObject
  22. Java Arrays.equals() returns false for two dimensional arrays
  23. How to check if array is already sorted
  24. How to access nested elements of json object using getJSONArray method
  25. How many objects are created due to inheritance in java?
  26. Java: how much time does an empty loop use?
  27. Why can I edit the contents of a final array in Java?
  28. Time Complexity for Java ArrayList
  29. java: Arrays.sort() with lambda expression
  30. Reverse Array Order

Leave a Comment