I am trying to use split() to get this output:
Colour = "Red/White/Blue/Green/Yellow/"
Colour = "Orange"
...but could not succeed. What am I doing wrong?
Basically I am matching the last / and splitting the string there.
String pattern = "[\\/]$";
String colours = "Red/White/Blue/Green/Yellow/Orange";
Pattern splitter = Pattern.compile(pattern);
String[] result = splitter.split(colours);
for (String colour : result) {
System.out.println("Colour = \"" + colour + "\"");
}
You need to split the string on the last /. The regex to match the last / is:
/(?!.*/)
Explanation:
/ : A literal /
(?!.*/) : Negative lookahead assertion. So the literal / above is matched only
if it is not followed by any other /. So it matches only the last /
(?<=/(?=[^/]*$)) instead. :D
/ at the end.Your pattern is incorrect, you placed the $ that says it must end with a /, remove $ and it should work fine.
While we are at it, you could just use the String.split
String colours = "Red/White/Blue/Green/Yellow/Orange";
String[] result = colours.split("\\/");
for (String colour : result) {
System.out.println("Colour = \"" + colour + "\"");
}
/. You'd have to join all but the last part back together with / to get what was required.How about:
int ix = colours.lastIndexOf('/') + 1;
String[] result = { colours.substring(0, ix), colours.substring(ix) };
(EDIT: corrected to include trailing / at end of first string.)
