Sequence in java

Question

Hi i am searching for smart way to create sequence for name not using varibale:
int seq=1
for () {
book = new book("Java book");
system.out.println("book_"+seq+ book .getName());
seq++;
is there another way to print the books with sequence
book1
book2
not using seq varibles?
Thanks in advance

Answer 1

I think jbish was right.
You looking for something like this?
import java.util.Map;
import java.util.HashMap;
import java.io.BufferedReader;
import java.io.InputStreamReader;
class Book {
  private String title;
  private String author;
  public Book(String title, String author) {
    this.title = title;
    this.author = author;
  public String getTitle() {
    return title;
  public String getAuthor() {
    return author;
class MapDemo {
  public static void main(String[] argv) throws Throwable {
    BufferedReader kbd = new BufferedReader(new InputStreamReader(System.in));
    Map<String, Book> books = new HashMap<String, Book>();
    books.put("book1", new Book("First Test Book", "Test Author"));
    books.put("book2", new Book("Second Test Book", "Second Test Author"));
    books.put("book3", new Book("Third Test Book", "Third Test Author"));
    books.put("book4", new Book("Fourth Test Book", "Fourth Test Author"));
    for( int i = 0; i < 4; i++ )
      System.out.printf("Author of %s: %s\n", String.format("book%d", (i+1)),
        books.get(String.format("book%d", (i+1))).getAuthor());
}