Objective-c arrays, mutable arrays

How arrays are used

Here is the array: type Nsarray

1 #import<UIKit/UIKit.h>2 #import "AppDelegate.h"3 4 intMainintargcChar*argv[]) {5     6     //creating an array with the @ symbol7Nsarray *arr = @[@"Hello",@"Jinpangpang"];8     9     //creating an array from a factory methodTenNsarray *ARR2 = [Nsarray arraywithobjects:@"Hello",@"Jinpangpang", nil]; One      A     //reading an array from a configuration file -Nsarray *ARR3 =[Nsarray arraywithcontentsoffile:[[nsbundle Mainbundle] -Pathforresource:@"Data"OfType:@"plist"]]; the      -      for(inti =0; I<[arr Count]; i++) { -NSLog (@"%@", [arr objectatindex:i]); -     } +      - @autoreleasepool { +         returnUiapplicationmain (argc, argv, Nil, nsstringfromclass ([appdelegateclass])); A     } at}

Variable group Nsmutablearray

1Nsmutablearray *arr = [[Nsmutablearray alloc] init];//open a mutable array object2      for(intI=0;i< -; i++) {3[Arr addobject:[nsstring stringWithFormat:@"Value:%d", I]];//Add Value4     }5     6      for(inti =0; I<[arr Count]; i++) {//Traverse Output7NSLog (@"%@", [arr objectatindex:i]);8}

Objective-c arrays, mutable arrays