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- package objectAndClasses;
- import java.util.ArrayList;
- import java.util.List;
- import java.util.Scanner;
- public class P06Students2 {
- static class Student {
- String firstName;
- String lastName;
- String age;
- String town;
- public Student (String firstName, String lastName, String age, String town) {
- this.firstName = firstName;
- this.lastName = lastName;
- this.age = age;
- this.town = town;
- }
- public String getFirstName() {
- return this.firstName;
- }
- public String getLastName() {
- return this.lastName;
- }
- public String getAge() {
- return this.age;
- }
- public void setAge(String age) {
- this.age = age;
- }
- public String getTown() {
- return this.town;
- }
- public void setTown(String town) {
- this.town = town;
- }
- }
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- List<Student> studentsList = new ArrayList<>();
- String input = scanner.nextLine();
- while (!input.equals("end")) {
- String[] studentsDataArr = input.split(" ");
- String firstName = studentsDataArr[0];
- String lastName = studentsDataArr[1];
- String age = studentsDataArr[2];
- String town = studentsDataArr[3];
- if (isStudentExisting(studentsList, firstName, lastName)) {
- int index = getExistingIndex(studentsList, firstName, lastName);
- studentsList.get(index).setAge(age);
- studentsList.get(index).setTown(town);
- } else {
- Student currentStudent = new Student(firstName, lastName, age, town);
- studentsList.add(currentStudent);
- }
- input = scanner.nextLine();
- }
- String homeTown = scanner.nextLine();
- for (Student student : studentsList) {
- if (homeTown.equals(student.getTown())) {
- System.out.printf("%s %s is %s years old%n", student.getFirstName(), student.getLastName(), student.getAge());
- }
- }
- }
- public static int getExistingIndex (List<Student> studentsList, String firstName, String lastName) {
- int index = -1;
- for (int i = 0; i < studentsList.size(); i++) {
- Student student = studentsList.get(i);
- if (student.getFirstName().equals(firstName) && student.getLastName().equals(lastName)) {
- index = i;
- }
- }
- return index;
- }
- static boolean isStudentExisting(List<Student> studentsList, String firstName, String lastName) {
- for (Student student : studentsList) {
- if (student.getFirstName().equals(firstName) && student.getLastName().equals(lastName)) {
- return true;
- }
- }
- return false;
- }
- }
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