无法使用 java 将 \\n 替换为空字符串

Question

Trying to replace \\n from a String with "",
after removing the \\n the expected o/p  would be:  "This is not working ";
Tried samples : 

 String str = "This \\nis \\n\\nnot \\n\\nworking ";

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

• This is not working.
  Could you please Help me out how to fix this issue?

Answer 1

You'll have to use \\\\n instead of a \\n . This should work:

String str = "This \\nis \\n\\nnot \\n\\nworking ";
System.out.println(str.replaceAll("\\\\n",""));

Answer 2

You can refer to online regex generator to explore more patterns. This would really help!

Meanwhile I guess below example should serve your use case:

public class RegularExpression {

public static void main(String[] args) {
    
    String originalString = "This \\nis \\n\\nnot \\n\\nworking ";

    String newString = originalString.replaceAll("\\\\n","");

    System.out.println(newString);

}

}