Get Length of array from reflection - Java Reflection

Java examples for Reflection:Array

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Description

Get Length of array from reflection

Demo Code

import java.lang.reflect.Array;
import static java.lang.System.out;

public class ArrayTrouble {
    public static void main(String... args) {
        Object o = Array.newInstance(int.class, 0);
        int[] i = (int[]) o;
        int[] j = new int[0];
        out.format("i.length = %d, j.length = %d, args.length = %d%n",
                i.length, j.length, args.length);
        Array.getInt(o, 0); // ArrayIndexOutOfBoundsException
    }/*  ww w. j a va2  s  . co m*/
}

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