You have a class Human with following structure:
@interface HumanClass : NSObject {
}
Our array with objects of HumanClass looks like following
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Lets sort it by date by applying a date sort descriptor. Note that we have given the key birthDate(HumanClasss's member var string)
You can change ascending to NO to make it descending .Result looks like following:
We created case-insensitive sorting descriptor for name and our result looks like following:
And our result looks like following
@interface HumanClass : NSObject {
NSString *name;
NSString *lastname;
NSInteger age;
NSString * city;
NSDate *birthDate;
Our array with objects of HumanClass looks like following
Reetu raj ,45, NY, 01.05.2011|15:46:40
Mike Hemington ,15, New Delhi, 01.05.2011|16:05:00
pinku Ji ,25, chandigarh, 01.05.2011|16:20:00
anita singh ,35, ramgarh, 09.04.2011|16:00:00
Ankita Singh ,55, barbados, 01.05.2011|16:03:20
Ram Malhotra ,27, New York, 02.05.2011|19:33:20
Sita Raman ,34, London, 01.05.2011|18:33:20
__________________________________________________________________________________________
Lets sort it by date by applying a date sort descriptor. Note that we have given the key birthDate(HumanClasss's member var string)
NSSortDescriptor *sortDesc = [[NSSortDescriptor alloc] initWithKey:@"birthDate" ascending:YES selector:@selector(compare:)];
[humanArray sortUsingDescriptors:[NSArray arrayWithObject:sortDesc]];
[self printHumanArray];You can change ascending to NO to make it descending .Result looks like following:
anita singh ,35, ramgarh, 09.04.2011|16:00:00
Reetu raj ,45, NY, 01.05.2011|15:46:40
Ankita Singh ,55, barbados, 01.05.2011|16:03:20
Mike Hemington ,15, New Delhi, 01.05.2011|16:05:00
pinku Ji ,25, chandigarh, 01.05.2011|16:20:00
Sita Raman ,34, London, 01.05.2011|18:33:20
Ram Malhotra ,27, New York, 02.05.2011|19:33:20
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__________________________________________________________________________________________
sortDesc = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES selector:@selector(compare:)];
Our result looks like following with array sorted by name but sorting is case-sensitive. [humanArray sortUsingDescriptors:[NSArray arrayWithObject:sortDesc]];
[self printHumanArray];Ankita Singh ,55, barbados, 01.05.2011|16:03:20
Mike Hemington ,15, New Delhi, 01.05.2011|16:05:00
Ram Malhotra ,27, New York, 02.05.2011|19:33:20
Reetu raj ,45, NY, 01.05.2011|15:46:40
Sita Raman ,34, London, 01.05.2011|18:33:20
anita singh ,35, ramgarh, 09.04.2011|16:00:00
pinku Ji ,25, chandigarh, 01.05.2011|16:20:00
__________________________________________________________________________________________
__________________________________________________________________________________________
sortDesc = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES selector:@selector(caseInsensitiveCompare:)];
[humanArray sortUsingDescriptors:[NSArray arrayWithObject:sortDesc]];
[self printHumanArray];We created case-insensitive sorting descriptor for name and our result looks like following:
anita singh ,35, ramgarh, 09.04.2011|16:00:00
Ankita Singh ,55, barbados, 01.05.2011|16:03:20
Mike Hemington ,15, New Delhi, 01.05.2011|16:05:00
pinku Ji ,25, chandigarh, 01.05.2011|16:20:00
Ram Malhotra ,27, New York, 02.05.2011|19:33:20
Reetu raj ,45, NY, 01.05.2011|15:46:40
Sita Raman ,34, London, 01.05.2011|18:33:20
__________________________________________________________________________________________
__________________________________________________________________________________________
We want to sort by first name as well as last name but by general convention it should be localized and case-insensitive. So our descriptor looks like following
sortDesc = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES selector:@selector(localizedCaseInsensitiveCompare:)];
NSSortDescriptor *sortDesc1 = [[NSSortDescriptor alloc] initWithKey:@"lastname" ascending:YES selector:@selector(localizedCaseInsensitiveCompare:)];
[humanArray sortUsingDescriptors:[NSArray arrayWithObjects:sortDesc,sortDesc1, nil]];
[self printHumanArray];And our result looks like following
anita singh ,35, ramgarh, 09.04.2011|16:00:00
Ankita Singh ,55, barbados, 01.05.2011|16:03:20
Mike Hemington ,15, New Delhi, 01.05.2011|16:05:00
pinku Ji ,25, chandigarh, 01.05.2011|16:20:00
Ram Malhotra ,27, New York, 02.05.2011|19:33:20
Reetu raj ,45, NY, 01.05.2011|15:46:40
Sita Raman ,34, London, 01.05.2011|18:33:20
__________________________________________________________________________________________
__________________________________________________________________________________________
We want to sort by multiple keys, first by city followed by name, so our descriptor looks like following:
sortDesc = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES selector:@selector(caseInsensitiveCompare:)];
sortDesc1 = [[NSSortDescriptor alloc] initWithKey:@"city" ascending:YES selector:@selector(caseInsensitiveCompare:)];
[humanArray sortUsingDescriptors:[NSArray arrayWithObjects:sortDesc1,sortDesc, nil]];
[self printHumanArray1];And our result looks like following. Note I am using another method(printHumanArray1) to print the values in this code snippet.
barbados, Ankita Singh ,55, 01.05.2011|16:03:20
chandigarh, pinku Ji ,25, 01.05.2011|16:20:00
London, Sita Raman ,34, 01.05.2011|18:33:20
New Delhi, Mike Hemington ,15, 01.05.2011|16:05:00
New York, Ram Malhotra ,27, 02.05.2011|19:33:20
NY, Reetu raj ,45, 01.05.2011|15:46:40
nice! this is very clear!
ReplyDeleteINTERNATIONAL CONCEPT OF WORK FROM HOME
ReplyDeleteWork from home theory is fast gaining popularity because of the freedom and flexibility that comes with it. Since one is not bound by fixed working hours, they can schedule their work at the time when they feel most productive and convenient to them. Women & Men benefit a lot from this concept of work since they can balance their home and work perfectly. People mostly find that in this situation, their productivity is higher and stress levels lower. Those who like isolation and a tranquil work environment also tend to prefer this way of working. Today, with the kind of communication networks available, millions of people worldwide are considering this option.
Women & Men who want to be independent but cannot afford to leave their responsibilities at home aside will benefit a lot from this concept of work. It makes it easier to maintain a healthy balance between home and work. The family doesn't get neglected and you can get your work done too. You can thus effectively juggle home responsibilities with your career. Working from home is definitely a viable option but it also needs a lot of hard work and discipline. You have to make a time schedule for yourself and stick to it. There will be a time frame of course for any job you take up and you have to fulfill that project within that time frame.
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Baby-sitting
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Nursery
For those who have a garden or an open space at your disposal and are also interested in gardening can go for this method of earning money. If given proper time and efforts nursery business can flourish very well and you will earn handsomely. But just as all jobs establishing it will be a bit difficult but the end results are outstanding.
Freelance
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This is a very vast field and here sky is the limit. All you need is a computer and Internet facility. Whatever field you are into work at home is perfect match in the software field. You can match your time according to your convenience and complete whatever projects you get. To learn more about how to work from home, contact us today on workfromhome.otr@gmail.comand our team will get you started on some excellent work from home projects.
Diet food
Since now a days Women & Men are more conscious of the food that they eat hence they prefer to have homemade low cal food and if you can start supplying low cal food to various offices then it will be a very good source of income and not too much of efforts. You can hire a few ladies who will help you out and this can be a good business.
Thus think over this concept and go ahead.