Example: Reverse Number using StringBuilder in Java

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// Reverse Number using StringBuilder
public class Main {
    public static void main(String[] args) {
        // Step 1: Define the number to be reversed
        int number = 67890;
        System.out.println("Original Number: " + number);

        // Step 2: Convert the integer to a String
        String numStr = String.valueOf(number);

        // Step 3: Create a StringBuilder from the string
        StringBuilder sb = new StringBuilder(numStr);

        // Step 4: Reverse the StringBuilder
        sb.reverse();

        // Step 5: Convert the reversed StringBuilder back to a String
        String reversedStr = sb.toString();

        // Step 6: Convert the reversed String back to an integer
        int reversed = Integer.parseInt(reversedStr);

        // Step 7: Print the reversed number
        System.out.println("Reversed Number (StringBuilder): " + reversed);
    }
}