Arrays: fill(Object[] a, int fromIndex, int toIndex, Object val) : Arrays « java.util « Java by API

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Java by API » java.util » Arrays

Arrays: fill(Object[] a, int fromIndex, int toIndex, Object val)


   



import java.util.Arrays;



class Person implements Comparable<Person> {

  public Person(String firstName, String surname) {

    this.firstName = firstName;

    this.surname = surname;

  }

  public String toString() {

    return firstName + " " + surname;

  }

  public int compareTo(Person person) {

    int result = surname.compareTo(person.surname);

    return result == 0 ? firstName.compareTo(((Person) person).firstName) : result;

  }

  private String firstName;

  private String surname;

}



public class Main {

  public static void main(String[] a) {

    Person[] people = new Person[100];

    Arrays.fill(people, 0, 50, new Person("A", "B"));

    Arrays.fill(people, 50, 100, new Person("C", "D"));

    for (Person person : people) {

      System.out.println(person);

    }

  }

}

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