Re: method saying "no return statement" when there IS one

  • From: Alex Hall <mehgcap@xxxxxxx>
  • To: programmingblind@xxxxxxxxxxxxx
  • Date: Sat, 23 Feb 2008 23:59:53 -0500

I had an if...else inside a double for loop, ensuring that no slot of a 2d array was >=2. I then moved the if outside of the loops and got rid of the else completely, since I initialized the variable that would be changed if a 2 or greater was encountered to be okay. The first try was like this (pretend all braces and declarations are okay): 

int ok=0; //1 is good, 0 is bad
for(i=0;i<grid.length;i++){
for(j=0;j<grid[i].length;j++){
if(grid[i][j]>=2){
ok=0;

else{
ok=1;



return ok;


Now the method that worked:
int ok=1; //1 is good, 0 is bad
for(i=0;i<grid.length;i++){
for(j=0;j<grid[i].length;j++){
if(grid[i][j]>=2){
ok=0;



return ok;



Have a great day,
Alex


----- Original Message -----
From: "Marlon Brandão de Sousa" <splyt.lists@xxxxxxxxx
To: programmingblind@xxxxxxxxxxxxx
Date sent: Sat, 23 Feb 2008 22:49:29 -0300
Subject: Re: method saying "no return statement" when there IS 
one


Hello Alex,
This is not the way to follow if you want to learn programming. 
You

can't say "a, I changed this and I don't know why it is but it is
working". You need to understand what is going on, because may 
be one
day you won't be able to put the if else outside a loop and you 
then
don't know what to do. I suggest you place your code here and 
let us
try to show you what's happenimg and why the compiler is 
accepting the

code or not deppending on what you're trying to achiev.
Thanks
Marlon



2008/2/23, Alex Hall <mehgcap@xxxxxxx>:

Ah, got it! I had the if...else inside the for loops, and when I
moved them outside it was fine for some reason. It now 
compiles.


Have a great day,
Alex



----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Sat, 23 Feb 2008 13:43:42 -0800
Subject: RE: method saying "no return statement" when there IS

one





I would have to see the code to know what is going wrong.



Ken



-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex

Hall

Sent: Saturday, February 23, 2008 1:43 PM
To: programmingblind@xxxxxxxxxxxxx;

programmingblind@xxxxxxxxxxxxx

Subject: RE: method saying "no return statement" when there IS

one



I just tried changing the method so I put an int into a variable

I called

"ok", then return ok.  It now says that variable ok might not

have been

initialized.  It was initialized at the start of the function,

however,

right along with my i and j counters and there is no problem with

i or j.

What am I doing wrong?????



Have a great day,
Alex
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--
When you say "I wrote a program that crashed Windows," people 
just
stare at you blankly and say "Hey, I got those with the system, 
for

free."
Linus Torvalds
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