Back-End Programming Exam > Back-End Programming Videos > Java Programming Fundamentals: For Beginners (in Hindi) > Lecture 15 Initialization block in Java Hindi
Lecture 15 Initialization block in Java Hindi Video Lecture | Java Programming Fundamentals: For Beginners (in Hindi) - Back-End Programming
FAQs on Lecture 15 Initialization block in Java Hindi Video Lecture - Java Programming Fundamentals: For Beginners (in Hindi) - Back-End Programming
| 1. Java में Initialization block क्या होता है? |  |
Ans. Initialization block एक विशेष प्रकार का block होता है जो किसी class के ऑब्जेक्ट का initialization करने के पहले execute होता है। यह एक constructor की तरह कार्य करता है लेकिन विशेषता यहां है कि यह static और non-static दोनों types में लिखा जा सकता है।
| 2. Java में Initialization block को कितने types में लिखा जा सकता है? | |
Ans. Java में Initialization block को दो types में लिखा जा सकता है - static और non-static। Static initialization block को static keyword के साथ लिखा जाता है और यह class के static डेटा को initialize करने के लिए उपयोग होता है। Non-static initialization block को class के instance डेटा को initialize करने के लिए उपयोग होता है।
| 3. Initialization block का उपयोग क्यों किया जाता है? | |
Ans. Initialization block का उपयोग विभिन्न कारणों के लिए किया जाता है। इसका मुख्य उपयोग किसी ऑब्जेक्ट का initialization करने से पहले आवश्यक तत्वों को initialize करने के लिए होता है। इसके द्वारा static और non-static डेटा को भी initialize किया जा सकता है।
| 4. क्या हम एक class में एक से अधिक initialization blocks लिख सकते हैं? | |
Ans. जी हां, हम एक से अधिक initialization blocks एक class में लिख सकते हैं। यह बहुत सामान्य है कि एक class में एक से अधिक initialization blocks होंगे, जहां प्रत्येक block अलग-अलग उद्देश्यों के लिए इस्तेमाल हो सकते हैं।
| 5. Initialization block क्या हैंडल exception को कैसे हैंडल करता है? | |
Ans. Initialization block एक exception को ऐसे हैंडल करता है जैसे एक constructor हैंडल करेगा। जब कोई exception initialization block में उठता है, तो वह exception इस block को लिखने वाले constructor तक पहुँच जाता है। यदि उचित exception handling code नहीं है, तो exception उपर के method तक प्रोपेगेट हो सकता है।
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Nov 22, 2024 Last updated |
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