java - What is use of user defined marker interface -

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इस सवाल का पहले से ही एक उत्तर है: < / P>

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    मान लीजिए कि मैं मार्कर इंटरफ़ेस Kiran बनाया है और मैं इस इंटरफेस का उपयोग कैसे कर सकता हूँ मुझे पता है कि यह क्रियाओं के लिए इस्तेमाल किया जाता है लेकिन मार्कर इंटरफ़ेस घोषित करने का क्या उपयोग होता है। 

      सार्वजनिक इंटरफेस kiran {}    
     
     
     एक सामान्य उपयोग के मामले का परीक्षण करना है, यदि किसी वस्तु को इस इंटरफ़ेस से चिह्नित किया गया है:  
      यदि (obj instanceof kiran) {// कुछ करें}

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