Java String Exercise

Some pointers:

String.toUpperCase
String.replace
StringBuilder.reverse

Thanks, I'll research the API docs on those.

I have tested my RegEx /[a-zA-Z]+/g on my test string and it selects all of the words correctly. Is there a String class method that I can use that will allow me to use my RegEx expression to select the Words in my String and Return them back as a string, leaving the un-selected text behind?
?

I have tested my RegEx /[a-zA-Z]+/g on my test string and it selects all of the words correctly.

How and where?

Is there a String class method that I can use that will allow me to use my RegEx expression to select the Words in my String and Return them back as a string

That's not really how regex works. You need to think about replacement

I am trying to use the String.replace(regex , string) method to get the job done.

Like this;

public class PalCode
{

    public PalCode()
    {
        String palString = new String("Able was I, ere I saw Elba."); // original input String
        String workedString = new String(""); // String after manipulation
        workedString = palString.replace("[^a-zA-Z]+/g" , "");
        System.out.println("Manipulated string result is: " + workedString);

    }
}// end class PalCode

The regex expression should match character that are NOT a-z or A-Z and replace them with "nothing".
The program runs and compiles without any errors but the regex has NO effect. ??

The String replace method will replace a char sequence or array. I think you should look at the replaceAll method which takes a regular expression as its first argument.

Too late with my replaceAll suggestion :-(

Now you just need to create a string that's the reverse of the string you have and compare them to complete your task.

When you come back again with your next question, be great if you could stick your code in the code formatting delimiters. ;)

Figured it out.