java - reading from external txt file from jar file -


मुझे चाहिए कि मेरा प्रोग्राम ऑपरेशन का समर्थन करेगा: 

  java -jar filename.jar & LT; Input3.txt   
 मुझे नहीं पता कि इस तरह के कमांड से कैसे निपटें। मैं अपने मुख्य कार्यक्रम में इनपुट फ़ाइल कैसे पढ़ सकता / सकती हूं? मुझे लाइन से टेक्सटी फ़ाइल लाइन को पढ़ने की आवश्यकता है I   
 
 
 आपके पास आपके प्रश्न का उत्तर है।  
 आपकी मुख्य विधि प्रोग्राम को उसके तर्कों में फ़ाइल पथ को स्वीकार करने के लिए तैयार होना चाहिए (और उसे फ़ाइल के साथ क्या करना है)।  
 यदि फ़ाइल पथ पहली तर्क है, तो आप इसे आर्गेंगमेंट एरे की पहली स्थिति के माध्यम से एक्सेस कर सकते हैं।  
  सार्वजनिक वर्ग मुख्य वर्ग {सार्वजनिक स्थिर शून्य मुख्य (स्ट्रिंग) [] आर्ग्स) {स्ट्रिंग फ़ाइलपथ = आर्ग्स [0]; }}   
 निष्पादित करने के लिए, आपको बस करना होगा:  
  java -jar filename.jar input3.txt

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