Common operations for the Objective-c:nsmutablearray class

The content size of the variable group Nsmutablearray is variable, so its common operation is nothing more than adding and removing the check,

Some of them are: Create, add, delete, replace, insert, empty, etc...

//

Main.m

02-nsmutablearray

//

Created by Ma C on 15/8/18.

Copyright (c) 2015 BJSXT. All rights reserved.

//

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[])

{

@autoreleasepool

{

Nsmutablearray variable Array

1. Create

1.1 Creating a mutable array from an immutable group

Nsarray *array = @[@1,@2,@3,@4,@5];

Nsmutablearray *mutablearray1 = [Nsmutablearray Arraywitharray:array];

1.2 Creating an empty mutable array

Nsmutablearray *mutablearray2 = [Nsmutablearray array];

1.3 Creating a fixed-size array

Nsmutablearray *mutablearray3 = [Nsmutablearray arraywithcapacity:10];

2. Adding objects

[Mutablearray1 addobject:@6];

[Mutablearray1 addobject:@3];

NSLog (@ "%@", mutablearray1);

3. Deleting objects

[Mutablearray1 removeobject:@3];

NSLog (@ "%@", mutablearray1);

[Mutablearray1 removelastobject];//Delete the last

[Mutablearray1 removeobjectatindex:2];//Delete by index

NSLog (@ "%@", mutablearray1);

4. Replacing objects

[Mutablearray1 Replaceobjectatindex:2 withobject:@10];

NSLog (@ "%@", mutablearray1);

4. Inserting objects

[Mutablearray1 insertobject:@3 Atindex:2];

NSLog (@ "%@", mutablearray1);

5. Clear All Objects

[Mutablearray1 removeallobjects];

NSLog (@ "%@", mutablearray1);

}

return 0;

}

Common operations for the Objective-c:nsmutablearray class