codePointAt

import java.util.Scanner;

public class SomeClass {

  public static void main(String[] args) {
    try (Scanner scanner = new Scanner(System.in)) {
      System.out.println("enter a character and hit <enter> to know its Unicode code point");
      String str = scanner.nextLine();
      int i = str.codePointAt(0);
      System.out.print(str);
      System.out.print(": ");
      System.out.println(i);
    }
  }
}