Java Declaring ArrayList -


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

  • 1 उत्तर

    कभी-कभी मैं देख रहा हूँ ArrayLists की तरह <पूर्व> अर्रेलिस्ट & lt; स्ट्रिंग & gt; str;

    जबकि दूसरी बार मैं इसे देखता हूं जैसे 

      ArrayList & lt; स्ट्रिंग & gt; Str = नया अर्रेलिस्ट & lt; स्ट्रिंग & gt; ();   
     क्या दोनों के बीच कोई अंतर है? या समान हैं और क्या दूसरे पर इस्तेमाल करने के लिए बेहतर है?   
     
     
      सरणी लिस्ट & lt; स्ट्रिंग & gt ; str   
     यह केवल घोषित घोषित है  
      ArrayList & lt; स्ट्रिंग & gt; Str = नया अर्रेलिस्ट & lt; स्ट्रिंग & gt; ();   
     यह डिफ़ॉल्ट आकार 10 के साथ एआर चर का आरंभीकरण है।

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