Thread: filling an array with strings

Hi,

I am trying to fill an array with strings but the code does not work:

	static int numStudents = 20;
    Student[] students = new Student[numStudents];
    String theFiller = "0";
 
	Arrays.fill(students, theFiller);

I am getting:

Exception in thread "main" java.lang.ArrayStoreException: java.lang.String
at java.util.Arrays.fill(Arrays.java:2710)
at java.util.Arrays.fill(Arrays.java:2685)
at StudentDatabase.addStudent(StudentDatabase.java:90 )
at StudentDatabase.main(StudentDatabase.java:51)

when I try to use for loop:

		for (int i=0; i<length; i++)
		{
			students[i] = "0";
 
		}

I am getting "incompatible types"

I have set/get methods set for class Student, can you help me prefill this array please?

Student class

import java.io.*;
import java.util.*;
 
public class Student
{
  private String firstName;
  private String lastName;
  private String enrollmentDate; // better would be to use util.Date not String ??
  private Scanner scan;
 
  // default constructor - initializes default attr values
	public Student()
   	{
   	}
 
    public Student(String newFirstName, String newLastName, String newEnrollmentDate)
    {
      this.firstName = newFirstName;
      this.lastName = newLastName;
      this.enrollmentDate = newEnrollmentDate;
    }
 
//setters
	public void setFirstName (String newFirstName)
	{
		firstName = newFirstName;
	}
 
	public void setLastName (String newLastName)
	{
		lastName = newLastName;
	}
 
	public void setEnrollmentDate (String newEnrollmentDate)
	{
		enrollmentDate = newEnrollmentDate;
	}
 
//getters
    public String getFirstName()
    {
      return firstName;
    }
 
    public String getLastName()
    {
      return lastName;
    }
 
    public String getEnrollmentDate()
    {
      return enrollmentDate;
    }
 
}

my code is not working with:

Arrays.fill(students, theFiller);

the error what I have is:

Exception in thread "main" java.lang.ArrayStoreException: java.lang.String
at java.util.Arrays.fill(Arrays.java:2710)
at java.util.Arrays.fill(Arrays.java:2685)
at StudentDatabase.addStudent(StudentDatabase.java:88 )
at StudentDatabase.main(StudentDatabase.java:48)