Question

I want to know how can I make an NSString accessible in the whole class. Say I have these codes:

    - (void) init { 
        NSArray *elements  = [xpathParser search:@"//foo"];
            TFHppleElement *element = [elements objectAtIndex:0];
            NSString *data  = [element content];

        NSArray *elements1  = [xpathParser search:@"//foo2"];
            TFHppleElement *element2 = [elements1 objectAtIndex:0];
            NSString *data2 = [element2 content];
    }

And I want to use data & data2 in the whole class, how can I do that?

I want to show results here:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

    // Configure the cell.


    switch (indexPath.row) {

        case 0 :

            cell.textLabel.text = (@"%@", data);

            break;

        case 1: 

            cell.textLabel.text = (@"%@", data2);

            break;
}
    // Email & Password Section


    return cell;    
}

Answer 1

Make them variables inside the class by declaring them outside of the method, like:

NSString *data;
NSString *data2;

- (void) init { 
  NSArray *elements  = [xpathParser search:@"//foo"];
  TFHppleElement *element = [elements objectAtIndex:0];
  data = [[element content] retain];

  NSArray *elements1  = [xpathParser search:@"//foo2"];
  TFHppleElement *element2 = [elements1 objectAtIndex:0];
  data2 = [[element2 content] retain];
}

and later:

- (void)dealloc {
  [data release];
  [data2 release];
}