(Solved) : Got Java Code Library System Management Couldnot Run Eclipse Help Run Explanation Package Q30447742 . . . .

i got the java code for library system management but i couldnotrun it on eclipse can you help me , how to run it ? withexplanation

package librarymanagementproject;

//Book class to workwith BookObject

public class Book {
   private int bookNumber;
   private String bookName;
   private boolean availability=true; // by this , wefind whether the book is issued out or in Library

   public boolean isAvailability() {
       return availability;
   }

   public void setAvailability(boolean availability){
       this.availability =availability;
   }

   public Book(int bookNumber,String name)
   {
       this.bookNumber=bookNumber;
       this.bookName=name;
   }

   public int getBookNumber() {
       return bookNumber;
   }

   public void setBookNumber(int bookNumber) {
       this.bookNumber = bookNumber;