java help!! count number of upper and lower case letters

could someone help me with this.. thanks in advance!!!

Write a program that allows you to input a string. Your program will count and extract and display the number of upper case letters and lower case letters.
Sample output:
Enter a string: Hello World
Upper case letters: 2 - HW
Lower case letters: 8 – elloorld

here is what i did ....... hope this reference can help to newbies like me..

Code:

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import java.io.*;
public class casestudy4 {

        public static void main(String[] args)throws IOException {
                BufferedReader enterstring=new BufferedReader(new InputStreamReader(System.in));               
               
                String inputstring;
                String upper ="";
                String lower ="";
                String other ="";
               
                System.out.print("Enter a String: ");
                inputstring=enterstring.readLine();
               
                for (int i = 0; i < inputstring.length(); i++) {
                    char thisChar = inputstring.charAt(i);
                    if (thisChar >= 65 && thisChar <= 90) {
                            upper += thisChar;
                    } else if (thisChar >= 97 && thisChar <= 122) {
                            lower += thisChar;
                    }  else {
                            other += thisChar;
                    }
                }
                System.out.println("Upper case letters: " + upper.length() + " - " + upper);
                System.out.println("Lower case letters: " + lower.length() + " - " + lower);
                System.out.println("Other: "+other);
    }
}

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thread close......

great going....