J-CONTENTS & INCREMENT OPERATOR

I have 2-questions:-
1. What are the contents of Core Java & Adv. Java?
Is swing part of Core Java OR Adv. Java?
2. Let int a=1;
after execution of statement a=a+++a+a++; value of a will be 5
after execution of statement a=++a+a+a++; vaue of a will be 6
after execution of statement a=a+a+++a++; value of a will be 4
Please Explaine me the logic behind it.
Thanks & Regards,
GAJESH TRIPATHI
09252708020

gajesh wrote:
I have 2-questions:-
1. What are the contents of Core Java & Adv. Java?
Is swing part of Core Java OR Adv. Java?Huh? There is no official "core" vs. "advanced" (which is what I assume you mean by "adv"). Swing is part of the core API.
2. Let int a=1;
after execution of statement a=a+++a+a++; value of a will be 5
after execution of statement a=++a+a+a++; vaue of a will be 6
after execution of statement a=a+a+++a++; value of a will be 4
Please Explaine me the logic behind it.No. That's ridiculous code. You'll never see that for real.
Instead just learn about the difference between pre-increment (++x) and post-increment (x++).
http://java.sun.com/docs/books/tutorial/java/nutsandbolts/op1.html

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The key is to understand the difference between the
value of the expression and the value of the
variable.
i = i++;What that particular bit of devil-spawn does is
this:
1) Get the current value of i. The value of the
postfix increment expression is the value of the
variable before the new value is stored. So we
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incremented) and stuff it into i.
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int j;
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the same reason that j is 2 here makes i 2 if you put
i on the left of the equals.When the expression is "i = i + 1" compiled, it should be divided into two sub expressions :
1.) i = i; //As postfix defination says use value first and then increment
2)i = i + 1//Increment i;
so, accordingly, the value of i after first step should be 0 and then after second step it is 1(C,C++ behaviour).
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In contrary to C or C++, the meaning of i=i++ is well defined in Java.
It is better avoided though!
This i=i++ stuff gets regularly discussed.
http://forums.sun.com/thread.jspa?threadID=231270&tstart=122941
http://forums.sun.com/thread.jspa?threadID=441193&tstart=72796

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Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]
Wendy Li
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Well, it seems that you didn't get the point at all.
I know how to do the increment operation. What I
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And you got that in reply 2.I assumed the answer to be that. but i was only trying to be sure.
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Hello pal,
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http://java.sun.com/docs/books/tutorial/java/nutsandbolts/expressions.html
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