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At step 4 i have to return an anonymous instantiated Student object using the 4 entered items of information. Since i could not find any forums addressing this, i need some help setting it up or an example.
import java.util.Scanner;
public class Students
{
private static Scanner input = new Scanner(System.in);
public static void main(String[] args)
{
Student[] students;
students = getStudents();
printStudents(students);
}
private static Student[] getStudents()
{
Student[] temp;
int how_many;
System.out.print("How many students? ");
how_many = input.nextInt();
purgeInputBuffer();
temp = new Student[input.nextInt()]; // Step 1
for (int i = 0; i < temp.length; i++)
{
getStudent();
temp[i] = getStudent(); // Step 2
}
return temp; // Step 3
}
private static Student getStudent()
{
String name,
address,
major;
double gpa;
System.out.print("Enter name: ");
name = input.nextLine();
System.out.print("Enter address: ");
address = input.nextLine();
System.out.print("Enter major: ");
major = input.nextLine();
System.out.print("Enter GPA: ");
gpa = input.nextDouble();
purgeInputBuffer();
return ___________________________________________________; // Step 4
}
private static void printStudents(Student[] s)
{
System.out.println();
for (int i = 0; i < s.length; i++) // Step 5
{
System.out.println(______); // Step 6
}
}
private static void purgeInputBuffer()
{
// ----------------------------------------------------
// Purge input buffer by reading and ignoring remaining
// characters in input buffer including the newline
// ----------------------------------------------------
input.nextLine();
}
}
Answer
Simply
return new Student(constructor args);
where constructor args are whatever arguments your Student constructor requires.
The use of “anonymous” here is not standard Java terminology. I suppose since you don’t assign the object reference to a local variable it could be considered “anonymous”. It won’t remain anonymous for long since getStudent() is being called in getStudents() at
temp[i] = getStudent();
so the reference will be saved immediately (into the array).
“Anonymous” occurs in the term “anonymous subclass” but that is a completely different concept you probably have not touched on yet.
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