Java Reflection - Editing Array Length

Question

I was wondering if it is possible to change to change the length of a class\'s integer array using the Java Reflection API. If so, how?

Answer 1

I guess java will not allow you to change array length but yes you can set value at index using reflection.

 import java.lang.reflect.*;

 public class array1 {
  public static void main(String args[])
  {
     try {
        Class cls = Class.forName(
          "java.lang.String");
        Object arr = Array.newInstance(cls, 10);
        Array.set(arr, 5, "this is a test");
        String s = (String)Array.get(arr, 5);
        System.out.println(s);
     }
     catch (Throwable e) {
        System.err.println(e);
     }
  }
 }