Help me with this...

Question

I want to write a Java application program that will display the information of three(3) books.
The information of the books will be keyed in/input by the user.
After all the three books have been input, the information on these books will be displayed.
The information required are:
1. Title of the book.
2. Author's name.
3. Publisher.
4. Reference number.
5. Year published.
6. Price

Answer 1

OK..I often use the label 'sb' for my StringBuffer...and defaulted to it in that method..
Also..out of haste to type it in ad-hoc, I forgot a {} after public Book()
This compiles and works:
import java.io.*;
public class Book
static BufferedReader br;
String title, author,publisher;
int ref,year;
double price;
public Book(){}
public void setTitle(String title)
this.title = title;
public void setAuthor(String author)
this.author = author;
public void setPublisher(String publisher)
this.publisher=publisher;
public void setReference(int ref)
this.ref=ref;
public void setYear(int year)
this.year=year;
public void setPrice(double price)
this.price=price;
public void print()
StringBuffer sb = new StringBuffer(100);
sb.append("Title:").append(title).append('\n');
sb.append("Author:").append(author).append('\n');
sb.append("Publisher:").append(publisher).append('\n');
sb.append("Reference number:").append(ref).append('\n');
sb.append("Year published:").append(year).append('\n');
sb.append("Price: $").append(price).append('\n'); //might need to format this
System.out.println(sb.toString());
public static String getLine(String output)
System.out.print(output);
String s=null;
try {s= br.readLine();}
catch(Exception e){System.err.println("Console in has closed unexpectedly"); System.exit(1);}
return s;
public static int getInt(String output)
int i = -1;
while (i == -1)
try{i = Integer.parseInt(getLine(output));}
catch(Exception e) {System.out.println("Not an integer!");i = -1;}
return i;
public static double getDouble(String output)
double d = -1.0d;
while (d == -1.0)
try {d= Double.parseDouble(getLine(output));}
catch(Exception e) {System.out.println("Not a double!"); d = -1.0d;}
return d;
public static void initConsole() throws Exception
br = new BufferedReader(new InputStreamReader(System.in));
public static void main(String[] args)
try {initConsole();}
catch(Exception e) {System.out.println("There was an error in opening the console for reading\nSpecifically, it is:"+e.toString());System.exit(1);}
Book[] books = new Book[3];
for (int i=0; i<3; i++)
books=new Book();
System.out.println("Book # "+(i+1));
books[i].setTitle(getLine("Title?:"));
books[i].setAuthor(getLine("Author?:"));
books[i].setPublisher(getLine("Publisher?:"));
books[i].setReference(getInt("Reference #?:"));
books[i].setYear(getInt("Year published?:"));
books[i].setPrice(getDouble("Price ($$)?:"));
System.out.println("The three books are:\n");
for (int i=0; i<books.length;i++)
System.out.println("Book # "+(i+1));
books[i].print();