Add characters to the end of a string using regex notepad2

Question

I have a massive string (a SQL query..) that I have written out in notepad2. I'm using Java, and I was just wondering if there was a fast and easy way to add something to the end of each line? For example:

String query = "" 
+ " select column1
+ " , column2
+ " , column3
+ " from table
);
//want to add \n" at the end of each line

Answer 1

For anyone still here 5 years later, and you are attempting to add something onto the end a line for a large non-code file (and don't want to use REGEX), there are helpful online converter tools like https://pinetools.com/add-text-each-line.

Helped me out a bunch for creating CSV files for a neural network I was making

Answer 2

Find: (.)$
Replace: \1\\n"

Here's a good regex tutorial.