SCJP Module-1 Question-19
The sample example given below checks your knowledge of Object class and it also shows that how to store array of Integer object into an array.
The sample example given below checks your knowledge of Object class and it also shows that how to store array of Integer object into an array.Given a sample code:
1 public class Sample {
2 public static void main(String args[]) {
3 Object obj = new Integer[] { 1, 2, 3, 4, 5 };
{
4 for (String str : (String[]) obj)
5 System.out.print(str);
}
}}
What will be the result of above code ?
(1) Compilation error at line number 3
(2)
Compilation error at line number 4
(3) Prints 12345
(4) Raise runtime exception
Answer:
(2)
Explanation:
It raise the exception java.lang.ClassCastException as Ljava.lang.Integer; cannot be cast to [Ljava.lang.String;
