StringBuilder reverseStringBuilder = new StringBuilder() įor(int i = inputString. Import static .Assertions.assertEquals ĪssertEquals("tobor", new ReverseString().reverse("robot")) Īnother way to reverse a string in java is to use recursion and utilizing the charAt() method of the String classĮxample: import .Test The easiest way to reverse a string in Java is to use the built-in reverse() function of the StringBuilder class. The Interviewers may ask you to write different ways to reverse a string, or they may ask you to reverse a string without using in-built methods, or they may even ask you to reverse a string using recursion.īelow are various methods you can use to reverse a string in Java. String replaceAll(String regex, String replacement): This string method replaces all the occurrences of substrings which are fit to the regular expression regex. Reversing a string is one of the most frequently asked questions in a Java technical interview. The Java String class substring () method returns a part of the string.
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