objective c - Property of a property not being set? -

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मेरे पास OJTest.h है जिसमें: 

  @property (nonatomic) int testVal;

ViewController.h में: 

  #import "OJTest.h" @ प्रॉपर्टी (मजबूत, गैर-नॉटमिक) ओजेस्ट * testObject;

ViewController.m में: 

  - (शून्य) दृश्यडिडलोड {[सुपर व्यूडिडलोड]; Self.testObject.testVal = 100; NSLog (@ "% i", self.testObject.testVal); }

फिर भी कंसोल प्रिंट 0. मैं क्या याद आ रही है / गलतफहमी?

आपका testObject नहीं बनाया जा रहा है अपने दृश्य में निम्न प्रयास करें DidLoad: 

  self.testObject = [[OJTest alloc] init]; Self.testObject.testVal = 100;

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