JAVA array hands on 2 problem 2

JAVA handns on 2 problem 2

Problem 2:

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import java.io.*;

import java.util.*;

import java.text.*;

import java.math.*;

import java.util.regex.*;

import java.util.*;

public class Solution {

public static void main(String args[] ) throws Exception {



Scanner scn=new Scanner(System.in);

Book[] booksArray=new Book[4];

Book[] res=new Book[4];

for(int i=0;i<booksArray.length;i++)

{
booksArray[i]=new Book();
res[i]=new Book();
}
for(int i = 0;i<4;i++)
{
booksArray[i].id = scn.nextInt();scn.nextLine();
booksArray[i].title = scn.nextLine();
booksArray[i].author = scn.nextLine();
booksArray[i].price = scn.nextDouble();
}
String value=scn.next();
res=searchTitle(value, booksArray);
int [] matchedId=new int[4];
int j=0;
for(int i=0;i<res.length;i++)

{

if(res[i].id!=0)



{

matchedId[j++]=res[i].id;

}

}

Arrays.sort(matchedId);

for(int i=0;i<matchedId.length;i++)

{

if(matchedId[i]!=0)

System.out.println(matchedId[i]);

}

}

public static Book[] searchTitle(String value, Book[] books)

{

int k=0;

Book[] matching=new Book[4];

for(int i=0;i<matching.length;i++)

matching[i]=new Book();

for(int i=0;i<books.length;i++)

{

String val=value.toLowerCase();

String bookTitle=books[i].title.toLowerCase();

if(bookTitle.contains(val))

{

matching[k++]=books[i];

}

}

return matching;

}

}

class Book

{

int id;

String title;

String author;

double price;

public int getId()

{



return this.id;

}

public void setId(int id)

{

this.id=id;

}

public String getTitle()

{

return this.title;

}

public void setTitle(String title)

{

this.title=title;

}

public String getAuthor()

{

return this.author;

}

public void setAuthor(String author)

{

this.author=author;

}

public double getPrice()

{

return this.price;

}

public void setPrice(double price)

{

this.price=price;

}