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| Interview Questions and Answers for 'Close' - 3 question(s) found - Order By Newest | |||||
 Very frequently asked. Among first few questions in almost all interviews. Among Top 5 frequently asked questions. Frequently asked in Indian service companies (HCL,TCS,Infosys,Capgemini etc based on multiple feedback ) | |||||
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| Ans. "equals" is the method of object class which is supposed to be overridden to check object equality, whereas "==" operator evaluate to see if the object handlers on the left and right are pointing to the same object in memory. x.equals(y) means the references x and y are holding objects that are equal. x==y means that the references x and y have same object. Sample code: String x = new String("str"); String y = new String("str"); System.out.println(x == y); // prints false System.out.println(x.equals(y)); // prints true | |||||
 Sample Code for equals | |||||
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 Discuss Correct / Improve  java string comparison string object class == equals object equality operator  Asked in 292 Companies  basic  frequent | |||||
 Try 6 Question(s) Test | |||||
 Related Questions | |||||
 What is the difference between = and == in Java ? | |||||
| How is == operator different for objects and primitive types ? | |||||
| What will be the output of following code Integer x = 1; Integer y = 2; System.out.println(x == y); What if you change 1 to "1" and Integer to String? | |||||
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| Ans. BufferedWriter is temporary source for data storage.BufferedWriter is used to write character data to the file.Flush() is method available in B.W which ensures that all data items are written to file including last character.Close() is used to closes the character output stream. | |||||
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| Discuss Correct / Improve java java io input output file handling file io output stream bufferedwriter flush close | |||||
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| How and when the Buffer is cleared when using Buffered Writer Classes ? | |||||
| Difference between save and flush in Hibernate ? | |||||
| Have you ever faced any problem because of PrintWriter buffer and autoflush mechanism ? How did you got rid of it ? | |||||
| Can we disable auto flushing for PrintWriter ? | |||||
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| Ans. A Closeable is an interface which is a source or destination of data that can be closed. | |||||
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| Discuss Correct / Improve closeable interfaces intermediate rare | |||||
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