How to remove “ ” from java string

Question

I have a java string with \" \" from a text file the program accesses with a Buffered Reader object. I have tried string.replaceAll(\" 

Answer 1

String.replace(char, char) takes char inputs (or CharSequence inputs)

String.replaceAll(String, String) takes String inputs and matches by regular expression.

For example:

String origStr = "bat";
String newStr = str.replace('a', 'i');
// Now:
// origStr = "bat"
// newStr = "bit"

The key point is that the return value contains the new edited String. The original String variable that invokes replace()/replaceAll() doesn't have its contents changed.

For example:

String origStr = "how are you?";
String newStr = origStr.replaceAll(" "," ");
String anotherStr = origStr.replaceAll(" ","");
// origStr = "how are you?"
// newStr = "how are you?"
// anotherStr = howareyou?"

Answer 2

The same way you mentioned:

String cleaned = s.replace(" "," ");

It works for me.

Answer 3

There's a ready solution to unescape HTML from Apache commons:

StringEscapeUtils.unescapeHtml("")

You can also escape HTML if you want:

StringEscapeUtils.escapeHtml("")