Java Programming - Java.lang Class - Discussion
Discussion Forum : Java.lang Class - Finding the output (Q.No. 1)
1.
What will be the output of the program?
String x = new String("xyz");
String y = "abc";
x = x + y;
Answer: Option
Explanation:
Line 1 creates two, one referred to by x and the lost String "xyz". Line 2 creates one (for a total of three). Line 3 creates one more (for a total of four), the concatenated String referred to by x with a value of "xyzabc".
Discussion:
31 comments Page 3 of 4.
Viksonai said:
1 decade ago
As We Know String is Immutable, but here after concatenating it does not pointing the same ref in String pool, So its pointing new String in constant pool;.
M pradeep said:
1 decade ago
Can anyone show the proof that how 4 objects are getting created. I mean is there any way to show to someone on the machine by executing the program.
Dasoju said:
1 decade ago
Please summarize somebody, can we fix the answer as 3 objects.
Please conclude the discussion with proper explanation.
Thanks.
Please conclude the discussion with proper explanation.
Thanks.
Gaurav Kumar said:
1 decade ago
Can anyone tell me that why line one creates two object. It should create only one object and this answer is wrong.
Suhas said:
1 decade ago
I am not able to understand the concept behind the answer. Kindly exlpain the solution in detail.
Anandi Shewale said:
1 decade ago
I agree that Line 1 creates 2 object, and 2nd line 1 object but how 4th object is created?
Ramesh said:
1 decade ago
Only 3 objects are created the first line creates only one object.
Xyzabc said:
1 decade ago
@Anandi.
String is immutable so new object xyzabc is created.
String is immutable so new object xyzabc is created.
Raghavendra said:
6 years ago
Heap/scp
x-xyz . xyz.
x-xyzabc y-abc
4 objects are created.
x-xyz . xyz.
x-xyzabc y-abc
4 objects are created.
Asha said:
9 years ago
How x = x + y; will create object? Can you explain this?
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