Difference between casting to String and String.valueOf

Question

What is the difference between

Object foo = \"something\";
String bar = String.valueOf(foo);

and

Object foo = \"something\"         


        

Answer 1

final Object obj = null;
final String strValOfObj = String.valueOf(obj);
final String strCastOfObj = (String) obj;
if (strValOfObj == null) System.out.println("strValOfObj is null");
if (strCastOfObj == null) System.out.println("strCastOfObj is null");

Output: strCastOfObj is null