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casting required??

sonir shah
Ranch Hand

Joined: Nov 01, 2001
Posts: 435
class Super { }
class Sub extends Super { }
public class TestClass
{
public static void main(String[] args)
{
Super s1 = new Super(); //1
Sub s2 = new Sub(); //2
s1 = (Super) s2; //3
}
}

Ans : It will compile and run without any errors
Explaination : SubClass can ALWAYS be assigned to a Super Class without any cast.
Does this sentence mean the line//3 given in the code can be replaced by saying :
s1=s2;
Sonir
Junilu Lacar
Bartender

Joined: Feb 26, 2001
Posts: 5270
    
  10

Yes, but you could have easily figured that out yourself by deleting the cast and recompiling the code. For future reference, please read this thread for general posting guidelines: http://www.javaranch.com/ubb/Forum24/HTML/013803.html
Thanks for your cooperation.
---
Junilu Lacar
(off-duty barkeeper)
 
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