FOR JAVA:
Summary: Create a program that stores info on textbooks.
TextBook.java:
public class TextBook {
private String author;
private String title;
private int pagecount;
private String ISBN;
private double price;
//getters and setters
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getPagecount() {
return pagecount;
}
public void setPagecount(int pagecount) {
this.pagecount = pagecount;
}
public String getISBN() {
return ISBN;
}
public void setISBN(String iSBN) {
ISBN = iSBN;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
//constructor
public TextBook(String author, String title, int
pagecount, String iSBN,
double price)
{
super();
this.author = author;
this.title = title;
this.pagecount = pagecount;
ISBN = iSBN;
this.price = price;
}
//toString() method to print the object values
@Override
public String toString() {
return "Author: " + author +
"\nTitle: " + title
+ "\nPagecount: " + pagecount + "\nISBN: " +
ISBN + "\nPrice: "
+ price+"\n" ;
}
}
TextBookSort.java
import java.util.*;
public class TextBookSort {
public static void main(String[] args)
{
//Scanner ocject to read input
Scanner input=new
Scanner(System.in);
TextBook[] bookList=new
TextBook[5];
//adding books to bookList array
bookList[0]=new
TextBook("abc","hello world",123,"ABc123",123.4);
bookList[1]=new
TextBook("bcd","abdfd",90,"hfhBcqw23",121);
bookList[2]=new
TextBook("def","ekrejk",13,"dgd123",909);
bookList[3]=new
TextBook("kmo","wewe",993,"sdsi3",3434);
bookList[4]=new
TextBook("zui","grgr",1003,"eyuwew23",1201);
System.out.println("Select field to
sort Array \n1.sort by Title\n2.sort by ISBN\n3.sort by
Price\n4.sort by Page count\n5.sort by Author");
int choice=input.nextInt();
//taking user choice
if(choice==1)
{
//lamba
expression to sort array based on title of the book
Arrays.sort(bookList, (tb1, tb2) ->
tb1.getTitle().compareTo(tb2.getTitle()));
}
else if(choice==2)
{
//lamba
expression to sort array based on ISBN of the book
Arrays.sort(bookList, (tb1, tb2) ->
tb1.getISBN().compareTo(tb2.getISBN()));
}
else if(choice==3)
{
//lamba
expression to sort array based on Price of the book
Arrays.sort(bookList, (tb1, tb2) ->
Double.compare(tb1.getPrice(), tb2.getPrice()));
}
else if(choice==4)
{
//lamba
expression to sort array based on Pagecount of the book
Arrays.sort(bookList, (tb1, tb2) ->
tb1.getPagecount()-tb2.getPagecount());
}
else if(choice==5)
{
//lamba
expression to sort array based on Author of the book
Arrays.sort(bookList, (tb1, tb2) ->
tb1.getAuthor().compareTo(tb2.getAuthor()));
}
else//If invalid choice is
entered
{
System.out.println("Invalid Choice Found!");
}
System.out.println("Array after
sorting");
for(int i=0;i<5;i++) //Printing
the array of objects after sorting
{
System.out.println(bookList[i]);
}
}
}
OUTPUT:
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