Java Character codePointCount(CharSequence seq, int beginIndex, int endIndex) Method

Java codePointCount() method is a part of Character class. This method returns the Unicode codepoint count in the text range which begins from the specified beginIndex and ends at the specified endIndex.

Syntax:

public static int codePointCount(CharSequence seq, int beginIndex, int endIndex)  

Parameters:

The parameters passed are:

• CharSequence seq,

• beginIndex which is the first char of the text range.

• endIndex which is the last index of the text range.

Returns:

Returns the number of Unicode code points in the specified text range.

Example 1:

Here, the Unicode codepoint count in the specified text range is returned.

import java.lang.Character;

public class StudyTonight
{    
   public static void main(String [] args)throws Exception
   {   
        CharSequence cs = "Learning Java is fun";  
        System.out.println("Learning Java is fun");  
        int begin = 0;  
        int end = cs.length();   
        int r = Character.codePointCount(cs, begin,end);  
        System.out.println("The count is : "+r);  
   } 
}

Learning Java is fun
The count is : 20

Example 2:

Here is a user-defined example where anyone using this code can put a value of his choice and get the desired output.

import java.lang.Character;
import java.util.Scanner;

public class StudyTonight
{    
   public static void main(String [] args)throws Exception
   {   
        try
        {
          System.out.println("Enter charSequence");
          Scanner sc = new Scanner(System.in);
          CharSequence s = sc.nextLine();
          System.out.println("Enter begin index");
          int n1 = sc.nextInt();
          System.out.println("Enter end index");
          int n2 = sc.nextInt();
          System.out.println("The codepoint count is : " +Character.codePointCount(s,n1,n2));  
          
        }
        catch(Exception e)
        {
          System.out.println("Invalid Input");
        } 
   }
}

Enter charSequence
welcome to java
Enter begin index
2
Enter end index
6
The codepoint count is : 4
**********************************
Enter charSequence
take care
Enter begin index
10
Enter end index
6
Invalid Input

Live Example:

Here, you can test the live code example. You can execute the example for different values, even can edit and write your examples to test the Java code.