Getting the Length and Dimensions of an Array Object

   

import java.lang.reflect.Array;

public class Main {
  public static void main(String[] argv) throws Exception {
    Object o = new int[1][2][3];
    int len = Array.getLength(o); // 1
    System.out.println(len);
    int dim = getDim(o); // 3
    System.out.println(dim);
  }

  public static int getDim(Object array) {
    int dim = 0;
    Class cls = array.getClass();
    while (cls.isArray()) {
      dim++;
      cls = cls.getComponentType();
    }
    return dim;
  }
}

1.	Creating an Array: An array of 10 ints.
2.	Creating an Array: An array of 10 int-arrays.
3.	Creating an Array: A 10x20 2-dimensional int array.
4.	Getting and Setting the Value of an Element in an Array Object
5.	Array Reflection: name and type
6.	Array Reflection: getComponentType()
7.	Array Reflection: create instance
8.	Array Reflection: get length
9.	Array Reflection: Multi Array Reflection
10.	Using reflection to check array type and length
11.	Using reflection to create, fill, and display an array
12.	Determining If an Object Is an Array
13.	Getting the Component Type of an Array Object
14.	Check if the given object is an array (primitve or native).
15.	return an Object array for the given object.
16.	This program demonstrates the use of reflection for manipulating arrays

Getting the Length and Dimensions of an Array Object : Array Reflection « Reflection « Java

Related examples in the same category