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88 lines
2.8 KiB
Java

/*
* Follows recently accessed elements should be referred more so kept on top of
* the list
*/
import java.util.LinkedList;
import java.util.List;
import java.util.Random;
import java.util.Scanner;
public class LocalityBasedSearching
{
public static void main(String[] args)
{
List<Integer> items = new LinkedList<Integer>();
Integer n = 10;
Scanner sc = new Scanner(System.in);
Random rand = new Random();
while (n > 0)
{
items.add(rand.nextInt(100));
n--;
}
System.out.println(items.toString());
boolean flag = true;
boolean found = false;
Integer numberofInstance;
while (flag == true)
{
numberofInstance = 0;
System.out.println("Enter the element to find: ");
Integer search = sc.nextInt();
for (int i = 0; i < items.size(); i++)
{
if (items.get(i).equals(search))
{
found = true;
System.out.println("Element found at index " + i
+ "\nReordering list...");
// Integer temp = items.get(numberofInstance);
// items.set(numberofInstance, search);
items.add(numberofInstance, search);
items.remove(i + 1);
// items.set(i, temp);
System.out.println("Reordered list: " + items.toString());
numberofInstance++;
// break;
}
}
if (found == false)
{
System.out.println("No such element found.");
}
System.out.println("Do you want to continue? <true>/<false>");
flag = sc.nextBoolean();
}
sc.close();
}
}
/*
[52, 94, 58, 8, 78, 0, 30, 81, 16, 58]
Enter the element to find:
8
Element found at index 3
Reordering list...
Reordered list: [8, 52, 94, 58, 78, 0, 30, 81, 16, 58]
Do you want to continue? <true>/<false>
true
Enter the element to find:
58
Element found at index 3
Reordering list...
Reordered list: [58, 8, 52, 94, 78, 0, 30, 81, 16, 58]
Element found at index 9
Reordering list...
Reordered list: [58, 58, 8, 52, 94, 78, 0, 30, 81, 16]
Do you want to continue? <true>/<false>
true
Enter the element to find:
94
Element found at index 4
Reordering list...
Reordered list: [94, 58, 58, 8, 52, 78, 0, 30, 81, 16]
Do you want to continue? <true>/<false>
false