check to see if a string contains a number code example

Example 1: check if string contains numbers

str.matches(".*\\d.*");

Example 2: check if the given string is a number

//Add this to your code and call
static private boolean isMyNumber(String s){
        try{
            Integer.parseInt(s);
            return true;
        }catch (Exception e){
            return false;
        }
    }