getting class ClassCastException

[Rc Reddy]

Exception in thread "main" java.lang.ClassCastException: [Ljava.lang.Object; incompatible with [Ljava.lang.String;
at com.test.corejava.util.ArrayTest.main(ArrayTest.java:37)



package com.test.corejava.util;

import java.util.ArrayList;
public class ArrayTest {
public ArrayTest() {
}
public static void main(String[] args) {
String[] arrayStr = null;
String[] arrayStr1 = null;
ArrayList<String> strList = new ArrayList<String>();
strList.add(new String("A"));
strList.add(new String("B"));
strList.add(new String("C"));
strList.add(new String("D"));
strList.add(new String("E"));
strList.add(new String("F"));
strList.add(new String("G"));
arrayStr = new String[strList.size()];
arrayStr = (String[])strList.toArray();
}

}


The above high lighted line throwing Class Cast Exception.
Can you people suggest why is not casting Object[] array to String[] array.

My Understanding is refernce can not cast.


Thanking you inadvance.

Ram

[Barry Gaunt]

Because it is not a String[], it is an Object[].

Use arrayStr = strList.toArray(new String[0]); instead.

[Rc Reddy]

Thanks.

[John Stone]

Rc Reddy:
but this one works, can you see why?

Object[] arrayObj = strList.toArray(new String[0]);
arrayStr = (String[]) arrayObj;