Use Array.setShort and Array.setLong : Array « Reflection « Java Tutorial






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import java.lang.reflect.Array;

public class ArrayTroubleToo {
  public static void main(String... args) {
    Object o = new int[2];
    Array.setShort(o, 0, (short) 2); // widening, succeeds
    Array.setLong(o, 1, 2L); // narrowing, fails
  }
}








7.9.Array
7.9.1.Determining If an Object Is an Array
7.9.2.Demonstrates the use of the Array class
7.9.3.Create array with Array.newInstance
7.9.4.Is field an array
7.9.5.Create integer array with Array.newInstance
7.9.6.Use Array.setInt to fill an array
7.9.7.Use Array.setShort and Array.setLong
7.9.8.Getting the Length and Dimensions of an Array Object
7.9.9.Getting the Component Type of an Array Object
7.9.10.Array reflection and two dimensional array
7.9.11.class name for double and float array
7.9.12.Returns the length of the specified array, can deal with Object arrays and with primitive arrays.