hello i am 1# user this app pleas help me

Answer 1

see variables are thinks were we can keep the
types of things like integers type , string type , or character type to understand variables just think it work as a container like you boil water in a container in same way variables are can be use
so the different type of variables like integer type "int" you can take only numbers secondly is
String type you can write alphabet or number or special characters like $@^!$@ .
so different variables have different use
I have just given the concept for variables you will learn more in sololearning. if you have any problems than ask me without a problem.