Java Help Please! No one seems to be able to give me an answer. I'm not sure what I'm doing wrong. Here is the question.

Here is my code:

Here is my output. I get the correct output but it says I need white space after the word. I've tried everything I can think of.

I've tried: System.out.println(ch); System.out.print(ch + " "); System.out.print(ch );

Thank you so much for your help!

4.15 LAB: Remove all non alpha characters Write a program that removes all non alpha characters from the given input. Ex. If the input is: Hello, 1 worlds! the output is: Hellowor 1d 4.151: LAB Remove all non alpha characters \begin{tabular}{l|l} LAB \\ ACTIVITY & 4.15.1: LAB: Remove all non alpha characters \end{tabular} 0/10 LabProgram.java Load default template.. \begin{tabular}{|l} Develop mode Submit mode When done developing your program, press the Submit for grading button below. This will \\ submit your program for auto-grading \end{tabular} Submit for grading Output is nearly correct, but whitespace differs. See highights below special character legend Input This!\$@sentence. Your output Thissentence Expectedoutput Thissentence Output is nearly correct, but whitespace differs. See highlights below. Input flying Your output flying Expected output flying