Book

package com.gridview;

public class Book implements Comparable<Book> {
    String symbol;
    String msgtype;
    String price;
     public int compareTo(Book bk){
         return symbol.compareTo(bk.symbol);
     }
    public Book(String sybl, String mtype, String price) {
        this.symbol = sybl;
        this.msgtype = mtype;
        this.price=price;
    }
    public String getTitle() {
        return symbol;
    }
    public void setTitle(String title) {
        this.symbol= title;
    }
    public String getAuthor() {
        return msgtype;
    }
    public void setAuthor(String author) {
        this.msgtype = author;
    }
    public String getPrice() {
        return price;

    }
    public void setPrice(String price) {
        this.price=price;
    }

}