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Showing content from https://www.tutorialspoint.com/javaexamples/string_codepointbefore.htm below:

How to determine the Unicode code point in string using Java

How to determine the Unicode code point in string?

This example shows you how to use codePointBefore() method to return the character (Unicode code point) before the specified index.

public class StringUniCode {
   public static void main(String[] args) {
      String test_string = "Welcome to TutorialsPoint";
      System.out.println("String under test is = "+test_string);
      
      System.out.println("Unicode code point at" 
         +" position 5 in the string is = "
         +  test_string.codePointBefore(5));
   }
}

The above code sample will produce the following result.

String under test is = Welcome to TutorialsPoint
Unicode code point at position 5 in the string is =111

java_strings.htm

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