Java: Count a number of Unicode code points in the specified text range of a String

Java String: Exercise-4 with Solution

Write a Java program to count Unicode code points in the specified text range of a string.

Sample Solution:

Java Code:

// Define a public class named Exercise4.
public class Exercise4 {
    // Define the main method.
    public static void main(String[] args) {
  
        // Declare and initialize a string variable "str" with the value "w3rsource.com".
        String str = "w3rsource.com";
        // Print the original string.
        System.out.println("Original String : " + str);
        
        // Count the number of Unicode code points from index 1 to index 10 in the string.
        int ctr = str.codePointCount(1, 10);
        
        // Print the count of Unicode code points from index 1 to index 10 in the string.
        System.out.println("Codepoint count = " + ctr);
    }
}

Sample Output:

Original String : w3rsource.com                                                                               
Codepoint count = 9

Flowchart:

Java Code Editor:

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