Another useful method is the toString() method, which is used to convert wrapper objects to strings.
In the following example, we convert an Integer to a String, and use the length() method of the String class to output the length of the "string":
public class Main {
public static void main(String[] args) {
Integer myInt = 100;
String myString = myInt.toString();
System.out.println(myString.length());
}
}