String class in java -


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

  • 21 उत्तर
  • Java स्ट्रिंग में एक वर्ग है और यह अनुरुप है ताकि हम इसके मान को परिवर्तित नहीं कर सकें। निम्नलिखित कोड में यह बिना किसी त्रुटि के अन्य स्ट्रिंग्स को समझाएगा। .मैं यह पूछना चाहता हूं कि यदि यह अपरिवर्तनीय है तो स्ट्रिंग के निम्न कोड मूल्य में क्यों बदल दिया गया है ?? 

      import java.util। *; पब्लिक क्लास कॉन्सेंट {सार्वजनिक स्थिर शून्य मुख्य (स्ट्रिंग एजीआर []) {स्ट्रिंग ए = "शीतल"; एक = एक + "गा"; Println ( "परिणाम:" + एक); }}

आपके द्वारा दिखाए गए कोड में, आपने मूल < कोड> स्ट्रिंग ऑब्जेक्ट।

इसके बजाय, आपने एक नया स्ट्रिंग ऑब्जेक्ट बनाया है, जो a + "Ga" का प्रतिनिधित्व करता है, और उसके बाद उसे संदर्भ में पुनः सौंपा गया चर एक

ध्यान दें कि इसके अलावा जावा में सभी चर संदर्भ हैं।


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