Custom Salesforce Apex Exception With Constructor

CustomExceptionWithConstructor

private class CustomExceptionWithConstructor extends Exception {
    Private Object obj;
    public CustomExceptionWithConstructor(Object obj){
        this.obj = obj;
    }
    public override String getMessage() {
        List<String> args = new String[]{obj.property1, obj.property2};
        return String.format('Custom exception message with multiple arguments: {0} and {1}', args);  
    } 
}