Remove end of line characters from Java string

Question

I have string like this

"hello
java
book"

I want remove and from String(hello java book). I want the result to be "hellojavabook". How can I do this?

Answer 1

Regex with replaceAll.

public class Main
{
    public static void main(final String[] argv) 
    {
        String str;

        str = "hello
java
book";
        str = str.replaceAll("(\r|\n)", "");
        System.out.println(str);
    }
}

If you only want to remove when they are pairs (the above code removes either or ) do this instead:

str = str.replaceAll("\r\n", "");