UjwalManjunath

void swap (int a, int b){
    a = a+b;    //9 = 4+5
    b = a-b;    //4 = 9-5
    a = a-b;    //5 = 9-4
}

UjwalManjunath

void swap(int a. int b ) {
    a= a^b;
    b= a^b;
    a= a^b; // XOR operation
}

UjwalManjunath

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
    
    int length = [[self formatNumber:[textField text]] length];
    
    if (length == 10) {
      //  [self textFieldShouldEndEditing:textField];
        if(range.length == 0) {
            return NO;
        }
    }

UjwalManjunath

- (void)locationManager:(CLLocationManager *)manager
     didUpdateLocations:(NSArray *)locations{

    CLLocation *currentLocation = [locations lastObject];
    if (currentLocation != nil) {
        NSLog(@" Longitude: %@",[NSString stringWithFormat:@"%.8f", currentLocation.coordinate.longitude]);
        NSLog(@"Latitude: %@",[NSString stringWithFormat:@"%.8f", currentLocation.coordinate.latitude]);
    }
    
    [self.locationManager stopUpdatingLocation];

UjwalManjunath

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    UIView *view = [[UIView alloc ]initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, 18)];
   
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 15, tableView.frame.size.width, 18)];
    [label setFont:[UIFont boldSystemFontOfSize:12]];
    NSString *string =@"Enter Email Address";
    /* Section header is in 0th index... */
    [label setText:string];
    view.backgroundColor = [UIColor clearColor];

UjwalManjunath

#import <QuartzCore/QuartzCore.h>  

UIImageView * roundedView = [[UIImageView alloc] initWithImage: [UIImage imageNamed:@"wood.jpg"]];
// Get the Layer of any view
CALayer * l = [roundedView layer];
[l setMasksToBounds:YES];
[l setCornerRadius:10.0];

// You can even add a border
[l setBorderWidth:4.0];

UjwalManjunath

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    [tableView cellForRowAtIndexPath:[NSIndexPath indexPathForItem:indexPath.row inSection:indexPath.section]].accessoryType = UITableViewCellAccessoryCheckmark;
    [self deSelectOtherCellsInTableView:tableView Except:indexPath];
   
}

-(void)deSelectOtherCellsInTableView:(UITableView *)tableView Except:(NSIndexPath *)indexPath{
    for(UITableViewCell *cell in [tableView visibleCells]){
        NSIndexPath *index = [tableView indexPathForCell:cell];
        if(index.section == indexPath.section && index.row != indexPath.row){

UjwalManjunath

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath   *)indexPath
{
    [tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryCheckmark;
}

-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath 
{
    [tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryNone;
}

UjwalManjunath

import UIKit
import SystemConfiguration

public let ReachabilityChangedNotification = "ReachabilityChangedNotification"

class HTSDReachabiltiy: NSObject {
    typealias NetworkReachable = (HTSDReachabiltiy) -> ()
    typealias NetworkUnreachable = (HTSDReachabiltiy) -> ()
    
    enum NetworkStatus: CustomStringConvertible {

UjwalManjunath

import UIKit

extension UICollectionView {
    
     func registerCell(cellType:UICollectionViewCell.Type) {
        self.registerNib(cellType.nib(), forCellWithReuseIdentifier: cellType.id())
    }
    
    func registerSupplementaryView(classType:UICollectionReusableView.Type, kind:String) {
        self.registerNib(classType.nib(), forSupplementaryViewOfKind: kind, withReuseIdentifier: classType.id())