why and how output is 8

[Venkat Ramsimha]

public class SwitchTest
{
public static void main(String []args)
{
System.out.PrintIn("value =" +switchIt(4));
}
public static int switchIt(int x)
{
int j = 1;
switch(x)
{
case 1: j++;
case 2: j++;
case 3: j++;
case 4: j++;
case 5: j++;
default:j++;
}
return j + x;
}
}

hi all,
can anybody explain y for the above program the output is 8

thanks,
venkat

[Kumar J]

Originally posted by Venkat Ramsimha:
public class SwitchTest
{
public static void main(String []args)
{
System.out.PrintIn("value =" +switchIt(4));
}
public static int switchIt(int x)
{
int j = 1;
switch(x)
{
case 1: j++;
case 2: j++;
case 3: j++;
case 4: j++;
case 5: j++;
default:j++;
}
return j + x;
}
}

hi all,
can anybody explain y for the above program the output is 8

thanks,
venkat

since x=4 -> execution starts from case 4
j=1 becomes j=2 then
j=2 becomes j=3 then at last in default
j=3 becomes j=4 then
then we have return j+x; which is return 4 + 4; so 8 is output

[Barry Gaunt]

"Mr Kumar J" (aka Mr Kumar V) please change your displayed name to conform to our JavaRanch Naming Policy. In short: No "Mr", and a displayed name in the format <first name> <family name>. You may use initials only in place of your first name. You can change your displayed name via the "My Profile" link.
Thanks
-Barry

(NR)
[ May 12, 2005: Message edited by: Barry Gaunt ]

[Barry Gaunt]

Venkat, the best way to do these problems is by using paper and pencil and to run the program in your head. Notice that there are no break statements in this code so that execution will "fall through" from one case to the next.

[Venkat Ramsimha]

thanks kumar and barry