Number of Objects

[Ravi Yadav]

This is from CertSCJP study material...

11. public String makinStrings() {
12. String s = �Fred�;
13. s = s + �47�;
14. s = s.substring(2, 5);
15. s = s.toUpperCase();
16. return s.toString();
17. }
How many String objects will be created when this method is invoked?
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
ANSWER: C

Can someone tell me why the # of objects is 3?

[Tuna Töre]

It seems 4 for me ?


I am confused too...
[ November 01, 2008: Message edited by: Anut Walidera ]

[Christina Pong]

Is there any way to check the number of objects being created during the execution? Thanks :-)

[long meng]

i think there are 5 String objects: "Fred","47","Fred47","ed4","ED4"

[pradeepta chopra]

i completely agree with long meng
there should be 5 objects

[Ravi Yadav]

So the answere must be wrong...

[Jesper de Jong]

This exact question has been discussed many times on the forum here.

Click on the Search link at the top right of the page and search for "Fred 47", and you'll find a lot of old posts about this question.