Splitting String to list of Integers with comma and “-”

Question

Is there a simple way to parse the following String to List of Integers:

String s = \"1,2,5-9,11,12\"

// expected values list: [1,2,5,6,7,8,9,11,12]
List

        

Answer 1

List out=new ArrayList();
String numbers[]=s.split(",");
for(String part:numbers){
    if(part.contains("-"){
        int a=Integer.parseInt(part.split("-")[0]);
        int b=Integer.parseInt(part.split("-")[1]);
        while(a<=b){
             out.add(a++);
        }
    }else{
        out.add(Integer.parseInt(part));
    }
}