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public Person(int initialAge) {
age = initialAge;
// Add some more code to run some checks on initialAge
}
public void amIOld() {
// Write code determining if this person's age is old and print the correct statement:
if(age<0)
{ System.out.println("Age is not valid, setting age to 0.");
age = 0;
amIOld();
}
else if(age<13)
System.out.println("You are young.");
else if(age>=13 && age<18)
System.out.println("You are a teenager.");
else if(age>=18)
System.out.println("You are old.");
//System.out.println(age);
}
public void yearPasses() {
age++;
// Increment this person's age.
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int T = sc.nextInt();
for (int i = 0; i < T; i++) {
int age = sc.nextInt();
Person p = new Person(age);
p.amIOld();
for (int j = 0; j < 3; j++) {
p.yearPasses();
}
p.amIOld();
System.out.println();
}
sc.close();
}
}
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Day 4: Class vs. Instance
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import java.io.; import java.util.;
public class Person { private int age;
}