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scjp chapter 5 q...5 page no 303

sapana jain
Ranch Hand

Joined: Oct 24, 2007
Posts: 42
class Foozit {
public static void main(String[] args) {
Integer x = 0;
Integer y = 0;
for(Short z = 0; z < 5; z++)
if((++x > 2) || (++y > 2))
x++;
System.out.println(x + " " + y);
}
}
i think there is syntax error as they have not opened the curly brackets.....for for loop
please help me..............
P Ventura
Ranch Hand

Joined: Jan 24, 2007
Posts: 42

If a for isn't followed by braces, it loops the statement that follows the for.
In this case "If" is the looped statement.


Objective: SCJP 1.5<br /><a href="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Thread.html" target="_blank" rel="nofollow">API</a><br /> <blockquote><font size="1" face="Verdana, Arial">code:</font><hr><pre><font size="2"><br />Double n1 = Double.NaN; Double n2 = Double.NaN;<br /> n1.equals(n2) // true even though Double.NaN != Double.NaN<br />-0.0 == +0.0; // true<br />Double n1 = -0.0;Double n2 = +0.0;<br />n1.equals(n2) // false even though -0.0 == +0.0<br /></font></pre><hr></blockquote>
antonio ciambellari
Greenhorn

Joined: Sep 27, 2007
Posts: 11
Is the result x=4 and y=3?
al nik
Ranch Hand

Joined: Oct 18, 2007
Posts: 60
I think the output is x=8 y=2
the syntax

it's ok
the for cycle iterates 5 times
1st: x=1 , y=1
2nd: x=2 , y=2
3rd: x=4 , y=2
4th: x=6 , y=2
5th: x=8 , y=2



SCJP5 - SCWCD5 - SCBCD5
Manoj Macwan
Greenhorn

Joined: Aug 03, 2007
Posts: 24
The answer of this question is 8 2.

As said in the earlier post - If a for isn't followed by braces, it loops the statement that follows the for.
In this case "If" is the looped statement.

Here we are looping 5 times and each time values of X and Y are:
x y
0 - 1 1
1 - 2 2
2 - 4 2 (As the first expr is evaluated as TRUE, second expr won't executed)
3 - 6 2 (As the first expr is evaluated as TRUE, second expr won't executed)
4 - 8 2 (As the first expr is evaluated as TRUE, second expr won't executed)
sapana jain
Ranch Hand

Joined: Oct 24, 2007
Posts: 42
Originally posted by P Ventura:

If a for isn't followed by braces, it loops the statement that follows the for.
In this case "If" is the looped statement.


thanks a lot..........i am preparing for scjp and having many problems........so i just take chance to post my problem and in returned i got many mails and now my problem is solved.......
hope you will help me in future also.........
 
Consider Paul's rocket mass heater.
 
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