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public Person(int initialAge) {
if(initialAge<0)
{
age =0;
System.out.println("Age is not valid, setting age to 0.");
}
else{
age = initialAge;
}
}
public void amIOld() {
if(age<13){System.out.println("You are young.");}
else if(age>=13 && age<18){System.out.println("You are a teenager.");}
else {System.out.println("You are old.");}
}
public void yearPasses() {
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();
}
Day 4: Class vs. Instance
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public class Person { private int age;
}