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This article mainly introduces "what are the classic interview questions of String". In the daily operation, I believe that many people have doubts about the classic interview questions of String. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts of "what are the classic interview questions of String?" Next, please follow the editor to study!

1. Is String a basic data type?

2. If String is variable?

3. How to compare two strings with the same value, and how to compare whether two strings are the same object?

4. Can I use String in switch?

5. String str = new String ("abc"); several objects are created, why?

6. What's the difference between String, StringBuffer and StringBuilder?

7. Which characters are removed by the String.trim () method?

8. Can String be inherited by subclasses?

9. Can I customize the java.lang.String class and use it?

10. How do String and byte [] convert each other?

At this point, the study of "what are the classic interview questions of String" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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