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Lecture 42 Introduction to file handling in Java Hindi Video Lecture | Java Programming Fundamentals: For Beginners (in Hindi) - Back-End Programming
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FAQs on Lecture 42 Introduction to file handling in Java Hindi Video Lecture - Java Programming Fundamentals: For Beginners (in Hindi) - Back-End Programming
| 1. जावा में फ़ाइल हैंडलिंग क्या है? |  |
| 2. जावा में फ़ाइल हैंडलिंग के लिए कौन-कौन से क्लासेस हैं? | |
उत्तर: जावा में फ़ाइल हैंडलिंग के लिए विभिन्न क्लासेस हैं, जैसे कि FileReader, FileWriter, FileInputStream, FileOutputStream और BufferedReader। इन क्लासेस का उपयोग फ़ाइलों से डेटा पढ़ने और उन्हें लिखने के लिए किया जाता है।
| 3. जावा में फ़ाइल पढ़ने के लिए FileReader क्लास का उपयोग कैसे करें? | |
उत्तर: FileReader क्लास का उपयोग फ़ाइल से डेटा पढ़ने के लिए किया जाता है। इसके लिए हमें FileReader ऑब्जेक्ट बनाना होगा, और फ़ाइल का पथ प्रदान करना होगा। फिर हम read() फ़ंक्शन का उपयोग करके डेटा को पढ़ सकते हैं।
| 4. जावा में फ़ाइल लिखने के लिए FileWriter क्लास का उपयोग कैसे करें? | |
उत्तर: FileWriter क्लास का उपयोग फ़ाइल में डेटा लिखने के लिए किया जाता है। इसके लिए हमें FileWriter ऑब्जेक्ट बनाना होगा, और फ़ाइल का पथ प्रदान करना होगा। फिर हम write() फ़ंक्शन का उपयोग करके डेटा को लिख सकते हैं।
| 5. फ़ाइल हैंडलिंग में IOException क्या है और इसे कैसे हैंडल करें? | |
उत्तर: IOException एक एक्सेप्शन है जो फ़ाइल हैंडलिंग के दौरान उत्पन्न हो सकती है। इसे हैंडल करने के लिए हम try-catch ब्लॉक का उपयोग कर सकते हैं, जहां हम IOException को catch करके इसका समाधान कर सकते हैं। इसके अलावा, हम इसे throws क्लॉज का उपयोग करके या finally ब्लॉक में हैंडल कर सकते हैं।
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