课程咨询 :024-22556151

保险公司承保达内学员学习效果

  • 一组外企开发的笔试题

    发布:沈阳达内      来源:达内      时间:2015-10-30

    • 1.why can't NSArray contain NSInteger Instance? with which extra step can you do it?
          2.complete this code so that it becomes syntacticallty correct using no more than one additional word and  square branckets
      NsInteger myNumber=@"10000";
          这个我会回答是:NSInteger myInt = [myString intValue];
          3.What does the following code do? Variable age is defined as NSInteger It compiles fine..but why does it crash?
      UILabel *mylabel=[UILabel new];
      mylabel.text=age?[NSString stringWithFormat:@"%@",age];@"";
          这个我的回答是:定义一个UITable对象,根据age的true或者false来给该对象的text属性赋值。难道是bool转换成string时导致的crash?
          4.Why does the following code crash as soon as the property is set?What is the simple fix?
      MeasueStripView.h
      @Interface MeasueLinealView:UIview
      {
      NSUIInteger minvalue;
      }
      @property (nonatomic,assign)NSUIInteger minvalue;
      MeasueStripView.m
      #import "MeasueStripView.h"
      @implementation MeasueStripView
      @synthsize minvalue
      #progma mark Passthrough properties
      -(void) setMinValue:(NSUIInteger)aVal
      {
      self.minvalue:aVal;
      }
      Some other file:
      MeasueStripView *myMS=[MeasueStripView ww];
      myMS.minValue=100;//THis Line crashes..
          5.You have a UIView and would like to for it to have rounded corners, What's the Fastest way to achive that|
          6 How many methods do you know of performing a piece of code in other thread on IOS4.0 and later version.
          关于多线程的问题,只能去翻apple的文档了。我查到的方法是:
          detachNewThreadSelector或performSelectorInBackground
          NSThread
          NSOperationQueue

上一篇:看世界著名互联网公司的古怪面试题

下一篇:.NET开发工程师笔试基础题

最新开班日期  |  更多

.NET培训工程师班--全日制班

.NET培训工程师班--全日制班

开班日期:7月31日

.NET培训工程师班--周末班

.NET培训工程师班--周末班

开班日期:7月31日

.NET培训—零基础全日制

.NET培训—零基础全日制

开班日期:7月31日

.NET培训—零基础周末班

.NET培训—零基础周末班

开班日期:7月31日

  • 地址:沈阳市沈河区青年北大街7号东煤地质大厦3楼
  • 课程培训电话:024-22556151     全国服务监督电话:400-111-8989
  • 服务邮箱 tousu@tedu.cn
  • 2001-2016 达内时代科技集团有限公司 版权所有 京ICP证8000853号-56