Split a String by multiple delimiters in java

Question

what is the possible way to split a String by multiple delimiters? Is StringTokenizer can help me out to achieve this?

String str="list1|10456103|10456102|10456121#list2|10456105|10456122";
String str="list1|10513846#list2|";
String str3="list1#list2|10509855";
String str4="list2|10481812|";
String str5="list1|10396496|";
String str6="list1#list2|";

So now I should be able to extract only the long values :

For Str1  Finallist=[10456103,10456102,10456121,10456105,10456122]
For Str2  Finallist=[10513846]     
For Str3  Finallist=[10509855]
For Str4  Finallist=[10481812]
For Str5  Finallist=[10396496]
For Str6  Finallist[] 

           

Answer 1

you can split them using the split method for String in java, then check if it's numeric or not.

the string is split by having # or | or , once or more than once.

then the split strings are tested to be numeric or not, as so:

    public static void main(String []args){
    String str="list1|10456103|10456102|10456121#list2|10456105|10456122";
    
    String arr[] = str.split("[|,#]+");
    
    for(String s: arr){
        try{
            int num=Integer.parseInt(s);
            System.out.println(num + " is a number"); //add to list
        }catch(Exception err) {
            System.out.println(s + " is not a number"); //don't add to list
        }
    }
 }