this.java

class Person {
 private String name;
 private int age;

 public Person(String name, int age) {
 this.name = name;
 this.age = age;
 }

 public void printDetails() {
 System.out.println("Name: " + this.name);
 System.out.println("Age: " + this.age);
 }
}

public class this{
 public static void main(String[] args) {
 Person person1 = new Person("Alice", 30);
 person1.printDetails();
 }
}