I am trying to remove elements from one CSV string with other CSV string :
Example:
String s1= "a,b,c,d,e,f,g,h,w,p,4,5,12,u,v"; /* Base String */
String s2="e,5,v";` /*(input string) This elements has to remove from above string S1 */
Expected Output String s1: "a,b,c,d,f,g,h,w,p,4,12,u";
I have Tried: For loop and remove elements and append back String.
I can to this by no. of ways, but i want to know if there is any library/method/utility available ?
try to use String::replaceAll with some regex like this :
String regexReplace = "[" + s2.replace(",", "") + "]";//result [e5v]
s1 = s1.replaceAll(regexReplace, "") // replace all character in class [e5v] with empty
.replaceAll(",{2,}", ",")// replace all two or more comma with one comma
.replaceAll("(^,|,$)", "");// in some cases replace comma in start or in the end
General solution (to match words and not letters) you can use this instead :
String regexReplace = "(" + s2.replace(",", "|") + ")";// result (e|5|v)
Try StringUtil from Spring
String s1= "a,b,c,d,e,f,g,h,w,p,4,5,12,u,v"; /* Base String */
String s2="e,5,v";
System.out.println(StringUtils.deleteAny(s1, s2));
