# How to show the maximum and the minimum in array...

I have a bookstore application, but I cannot show the maximum and the minimum price of the book. Please see my codes below.

```import java.util.*;
public class Book{
public static void main(String args[]){
int numOfBook;
double totalCost = 0;
String expBookTitle = "";
double expBookPrice = 0;
String cheapBookTitle = "";
double cheapBookPrice = 0;
Scanner input = new Scanner(System.in);
System.out.println("Welcome to SAJID's Book Shop");
System.out.print("How many book would you like to store: ");
numOfBook = input.nextInt();
String[] book = new String[numOfBook];
double[] bookPrice = new double[numOfBook];
for(int i=0;i<book.length;i++)
{
book[i] = input.next();
bookPrice[i] = input.nextDouble();
System.out.println();
totalCost += bookPrice[i];
if(bookPrice[i] == expBookPrice)
{
expBookPrice = bookPrice[i];
expBookTitle = book[i];
System.out.println("Expensive book price: " + expBookPrice);
System.out.println("Expensive book title: " + expBookTitle);
if(bookPrice[i] <= expBookPrice)
{
cheapBookPrice = bookPrice[i];
cheapBookTitle = book[i];
System.out.println("Cheap book price: " + cheapBookPrice);
System.out.println("Cheap book title: " + cheapBookTitle);
}
}
}
}
}
``` June 7, 2012 at 3:41 PM

The given code accepts the user to enter the number of books. According to that, user enter the name and book and price. These values will get stored into respective arrays. Then it will determine the expensive book and cheap book. Here is the code:

```import java.util.*;
public class Book{
public static void main(String args[]){
int numOfBook;
double totalCost = 0;
String expBookTitle = "";
double expBookPrice = 0;
String cheapBookTitle = "";
double cheapBookPrice = 0;
Scanner input = new Scanner(System.in);
System.out.println("Welcome to SAJID's Book Shop");
System.out.print("How many book would you like to store: ");
numOfBook = input.nextInt();
String[] book = new String[numOfBook];
double[] bookPrice = new double[numOfBook];
for(int i=0;i<book.length;i++)
{
book[i] = input.next();
bookPrice[i] = input.nextDouble();
System.out.println();
}
double max = bookPrice;
double min = bookPrice;
int a=0,b=0;
for (int i=1; i<bookPrice.length; i++) {
if (bookPrice[i] > max) {
max = bookPrice[i];
a=i;
}
if (bookPrice[i]< min) {
min = bookPrice[i];
b=i;
}
}
System.out.println("Expensive book price: " + max);
System.out.println("Expensive book title: " + book[a]);

System.out.println();

System.out.println("Cheap book price: " + min);
System.out.println("Cheap book title: " + book[b]);
}
}
```

How to show the maximum and the minimum in array...
How to show the maximum and the minimum in array...  I have a bookstore application, but I cannot show the maximum and the minimum price of the book... to SAJID's Book Shop"); System.out.print("How many book would you like to store
How to show the maximum and the minimum in array...
How to show the maximum and the minimum in array...  I have a bookstore application, but I cannot show the maximum and the minimum price of the book... to SAJID's Book Shop"); System.out.print("How many book would you like to store
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