oc-variable array inheritance immutable variables group

Source: Internet
Author: User

#import <Foundation/Foundation.h>

int Main (int argc, const Char * argv[]) {

@autoreleasepool {

// variable array inheritance immutable variable group

//1. Create A set number of elements to create

nsmutablearray *mutarr=[nsmutablearray arraywithcapacity:7];

//2. add an element to an array

nsarray *arr=@[@ "MON",@ "TUE",@ "WED",@ "THU",@ "FRI", @ "SAT",@ "SUN"];

nsmutablearray *mutarray=[nsmutablearray arraywitharray: arr];

[Mutarray addobject:@ "EIG"];

//3. inserts an element according to the specified subscript

[Mutarray insertobject:@ "NINE" atindex:8];

//4. Delete last element

[Mutarray removelastobject];

//5. Delete an element based on the specified subscript

[Mutarray removeobjectatindex:7];

//6. Delete based on the specified object

[Mutarray removeobject:@ "SUN"];

//7. Replace the element with the specified subscript

[Mutarray replaceobjectatindex:0 withobject:@ "SUN"];

for (ID str in mutarray) {

NSLog(@ "%@", str);

}

}

return 0;

}

oc-variable array inheritance immutable variables group

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