Cast an Object To Long in Java

Question

I am trying to convert a Object type to Long type in Java and I got as:

public static Long castObjectToLong(Object object) {
    return ((Long)object).longValue();

When I run, it throws ClassCastException

Answer 1

when you write return ((Long)object).longValue(); causes ClassCastException because Object is not Long. That I mean is if Object o = new Long(), then you can make cast ((Long)object). This is the example I wrote is just like:

public class Test {

    public static void main(String args[]){
        System.out.println(convertToLong(10));
    }
    
    public static Long convertToLong(Object o){
        String stringToConvert = String.valueOf(o);
        Long convertedLong = Long.parseLong(stringToConvert);
        return convertedLong;
        
    }

}

I convert Object to String first.Then String to Long.Please see this code is ok to use for you or not.