Java Code to get all images from html code

Java Code  to get all images from html code.

regex = Pattern.compile("[http]");
regexMatcher = regex.matcher(htmlParseData.getHtml());
List tr=htmlParseData.getOutgoingUrls();                      
imgUrlCounter=0;
for(i=0;i<tr.size();i++){
          if(tr.get(i).toString().contains(".jpg") || tr.get(i).toString().contains(".jpeg") || tr.get(i).toString().contains(".gif") || tr.get(i).toString().contains(".bmp")){
                   url = new URL(tr.get(i).toString()); 
                   Image image = new ImageIcon(url).getImage();
           }
 }

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