How to match string with java regular expression

How to match strings with java regular expressions: use tostring, the code is [while(matcher.find()){tmp.add(matcher.group(1).toString());}].

Java regular expression matching string method:

Use tostring

private static List<String> getImage(String str){
        List<String> tmp=new ArrayList<String>();
        String regex="<img src=\"([^\"]+?)\" />";
        Pattern pattern = Pattern.compile(regex);  
        Matcher matcher = pattern.matcher(str); 
        System.out.println(str);
        while(matcher.find()){
        
            tmp.add(matcher.group(1).toString());
            
        }
        return tmp;       
    }

Related learning recommendations: java basics

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