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Day4
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Day4
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/*Problem :Write a Person class with an instance variable, age , and a constructor that takes an integer, initialAge , as a parameter. The constructor must assign initialAge to age after confirming the argument passed as initialAge is not negative; if a negative argument is passed as initialAge, the constructor should set age to 0 and print Age is not valid, setting age to 0.. In addition, you must write the following instance methods:
yearPasses() should increase the age instance variable by 1.
amIOld() should perform the following conditional actions:
If age<13, print You are young..
If age>=13 and age<18, print You are a teenager..
Otherwise, print You are old..*/
import java.io.*;
import java.util.*;
public class Person {
private int age;
public Person(int initialAge) {
if (initialAge >=0)
{
this.age = initialAge;
}
else
{
age = 0;
System.out.println("Age is not valid, setting age to 0.");
}
public void amIOld() {
//Code for determining if this person's age is old and print the correct statement:
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() {
// Increment this person's age.
this.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();
}
}