Day 4: Class vs. Instance | 30 Days of Coding | HackerRank | Java Language

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Language: Java 7

public class Person {
    private int age;	
    public Person(int initialAge) {
  	// Add some more code to run some checks on initialAge
        if(initialAge < 0){
            System.out.println("Age is not valid, setting age to 0.");
            age = 0;
        else age = initialAge;

    public void amIOld() {
  	// Write code determining if this person's age is old and print the correct statement:
        String stmnt="";
        if(age < 13)stmnt = "You are young.";
        else if(age >=13 && age <18)stmnt = "You are a teenager.";
        else stmnt = "You are old.";

    public void yearPasses() {


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