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<span style="color:#6600FF;">NSObject</span> *nsobject = [nsarray <span style="color:#660099;">lastObject</span>];
<li>'''''- (void)insertObject:(id)that atIndex:(unsignedNSUInteger)index'''''</li>
<span style="color:#6600FF;">NSArray</span> *nsarray = [<span style="color:#6600FF;">NSArray</span> <span style="color:#660099;">initWithObjects</span>:<span style="color:#CC0000;">@"Open Source!"</span>];
<span style="color:#6600FF;">NSObject</span> *nsobject = [nsarray <span style="color:#660099;">lastObject</span>];
<li>'''''- (void)removeObjectAtIndex:(unsignedNSUInteger)index'''''</li>
<span style="color:#6600FF;">NSArray</span> *nsarray = [<span style="color:#6600FF;">NSArray</span> <span style="color:#660099;">initWithObjects</span>:<span style="color:#CC0000;">@"Open Source!"</span>];