java - How to test that a Jar is in a classpath in windows? -

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मेरे पास क्लासिक है: 

  java.lang.NoClassDefFoundError: org / python / util / Jython   
 यहां तक ​​कि अगर जार jython.jar मेरे उपयोगकर्ता  और  प्रणाली के व्यापक पथ के लिए पर्यावरण चर PATH में मौजूद है।  
 कैसे कर सकते हैं मैं जल्दी से परीक्षण करता हूं कि मैं पागल नहीं हूं और यह वास्तव में पथ में है?   
 
 
 जावा का उपयोग नहीं करता है  PATH  चर  
 एक जावा प्रोग्राम चलाने के दौरान  -cp  पैरामीटर का उपयोग  java  कमांड के लिए क्लासपाथ को निर्दिष्ट करने के लिए करें।  
 अपनी बैच फ़ाइल (.cmd फ़ाइल) के अंदर  java  कमांड ढूंढें और आवश्यक जार फ़ाइल जोड़ें:  
  java -cp somefile जार; \ पथ \ to \ jython.jar someclass.MainMethod   
 कृपया बहिष्कृत  CLASSPATH  का उपयोग न करें  
 अधिक जानकारी के लिए, कृपया जावा दस्तावेज़ीकरण देखें:

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