html - Replace and modify String using regex in java -


i have part of html website in below string format:

srcset=" /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@200w.jpg?20170808 200w, /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@338w.jpg?20170808 338w, /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@445w.jpg?20170808 445w, tesla_theme/assets/img/homepage/mobile/homepage-models--touch@542w.jpg?20170808 542w, /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@750w.jpg?20170808 750w"

i want add http://tesla.com in front of urls in srcset element http://tesla_theme/assets/img/homepage/mobile/homepage-models--touch@750w.jpg?20170808 750w

i believe done using regex, not sure.

how do using java if have multiple srcset elements in html string variable, , want replace of srcset url.'s , add server url in front?

note: /tesla_theme not consistent, cannot use replaceall, instead, have use regex.

you can use string class replace method below, replace "/_tesla" in given string. no special regex required unless have kind of pattern instead of "/tesla"

string srcset=" /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@200w.jpg?20170808 200w, /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@338w.jpg?20170808 338w, /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@445w.jpg?20170808 445w, tesla_theme/assets/img/homepage/mobile/homepage-models--touch@542w.jpg?20170808 542w, /tesla_theme/assets/img/homepage/mobile/homepage-models--touch@750w.jpg?20170808 750w";  string requiredsrcset = srcset.replace("/tesla_", "http://tesla_");

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