Write a recursive function to convert a given string into the number it represents. That is input will be a numeric string that contains only numbers, you need to convert the string into corresponding ...

Use the parse method of another wrapper class. Use the deprecated constructor of the Long class and autobox into a primitive long. Use the parse method of a different wrapper class, such as Integer.

How to create an Integer vs. int in Java While there is really only one way to initialize an int directly, you can initialize Integer types in Java multiple ways, including: Through a Java constructor ...