How to remove all String text before equals ('=') sign Java

Question

I\'d like to parse a string so I can build an XML document.

I have:

String value = \"path=/Some/Xpath/Here\";

I\'ve parsed it this way

Answer 1

Try with:

private void parseXpath() {
    String s = "path=/Some/Xpath/Here";
    s = s.replace("path=","");

    String[] tokens = s.split("/");
    for(String t: tokens){
        System.out.println(t);
    }
}

Also you can avoid removing it at all, if you get path=/Some/Xpath/Here by other regex, use lookbehind instead of exact matching:

(?<=path=)[^\\,]*

you should get just /Some/Xpath/Here.

EDIT If you want to print array as String, use static method Arrays.toString(yourArray);

Answer 2

Although the question is tagged with regex here is a solution using substring

    String[] tokens = s.substring(s.indexOf("=") + 1).split("/");

or

    String[] tokens = s.substring(s.indexOf("=/") + 1).split("/");

Answer 3

if you are looking into performance you should avoid usage of split since it uses regular-expressions which is a bit oversized for such a simple problem. if you just want to remove "path=" and you are sure that your string always starts that way you could go with the following:

String s = "path=/Some/Xpath/Here";
String prefix = "path=";
String result = s.substring(prefix.length);

Answer 4

Just do replace before splitting.

String[] tokens = s.replaceFirst(".*=", "").split("/");

This would give you an empty element at first because it would do splitting on the first forward slash after replacing.

or

String[] tokens = s.replaceFirst(".*=/", "").split("/");

But if you remove all the chars upto the = along with the first forward slash will give you the desired output.