charCodeAt() in Java

Introduction

charCodeAt() is a JavaScript function that returns the Unicode of the character at a specified index in a string. However, Java does not have a built-in charCodeAt() function. In this article, we will explore different ways to simulate the charCodeAt() function in Java.

Using the charAt() function

One way to simulate charCodeAt() in Java is to use the charAt() function and convert the character to its Unicode value using typecasting. Here's an example:

String str = "Java";
char c = str.charAt(0);
int unicode = (int) c;
System.out.println(unicode); // Output: 74

In this example, we use charAt() to get the character at index 0 in the string, which is the character "J". Then, we convert this character to its Unicode value using (int) c.

Using the codePointAt() function

Another way to simulate charCodeAt() in Java is to use the codePointAt() function. Here's an example:

String str = "Java";
int unicode = str.codePointAt(0);
System.out.println(unicode); // Output: 74

In this example, we use codePointAt() to get the Unicode value of the character at index 0 in the string.

Conclusion

Although Java does not have a built-in charCodeAt() function, we can simulate it using charAt() or codePointAt(). Which method you choose depends on your specific needs and preferences.