Handling Exceptions and Debugging - Beginning Java Programming: The Object-Oriented Approach - page 182

When you try to reference employee in line 7, Eclipse displays an error reminding you that the vari-
able employee has not been initialized. See Figure 6-7.
figure 6-7
The suggestion offered to initialize the variable will change line 6 to Person employee = null;
Of course, this will lead to a null pointer exception; you can see that just by reading the
code. You can correct it by initializing a new Person object referenced by the employee variable.
public class ExceptionExamples {
public static void main(String[] args) {
Person employee = new Person();
printPerson(employee);
}
public static void printPerson(Person myPerson){
System.out.println(myPerson.name + " is " + myPerson.age + " years old.");
}
}
class Person{
String name;