Linked List to Array Program in Java

How to delete all elements from my Linked List

package com.java2novice.linkedlist;

import java.util.LinkedList;

public class ClearMyLinkedList

{

 public static void main(String a[])

{

        LinkedList arrl = new LinkedList();

        arrl.add("First");

        arrl.add("Second");

        arrl.add("Third");

        arrl.add("Random");

        System.out.println("Actual LinkedList:"+arrl);

        arrl.clear();

        System.out.println("After clear LinkedList:"+arrl);

    }

}

How to find does Linked List contains all list elements or not

package com.java2novice.linkedlist;

import java.util.LinkedList;

import java.util.List;

public class MyElementCheck

{

public static void main(String a[])

{

        LinkedList arrl = new LinkedList();

        arrl.add("First");

        arrl.add("Second");

        arrl.add("Third");

        arrl.add("Random");

        List list = new LinkedList();

        list.add("Second");

        list.add("Random");

        System.out.println("Does LinkedList contains all list elements?: "

         +arrl.containsAll(list));

        list.add("one");

        System.out.println("Does LinkedList contains all list elements?: "

         +arrl.containsAll(list));

    }

}

How to copy Linked List to array

package com.java2novice.linkedlist;

import java.util.LinkedList;

public class MyLinkedListArray

{

public static void main(String a[])

{

        LinkedList arrl = new LinkedList();

        arrl.add("First");

        arrl.add("Second");

        arrl.add("Third");

        arrl.add("Random");

        System.out.println("Actual LinkedList:"+arrl);

        String[] strArr = new String[arrl.size()];

        arrl.toArray(strArr);

        System.out.println("Created Array content:");

        for(String str:strArr)

        {

            System.out.println(str);

        }

    }

}

How to get sub list from Linked List

package com.java2novice.linkedlist;

import java.util.LinkedList;

import java.util.List;

public class MyLinkedListSubRange

{

public static void main(String a[])

{

        LinkedList arrl = new LinkedList();

        arrl.add("First");

        arrl.add("Second");

        arrl.add("Third");

        arrl.add("Random");

        arrl.add("Click");

        System.out.println("Actual LinkedList:"+arrl);

        List list = arrl.subList(2, 4);

        System.out.println("Sub List: "+list);

    }

}

How to sort Linked List using Comparator

package com.java2novice.linkedlist;

import java.util.Collections;

import java.util.Comparator;

import java.util.LinkedList;

public class MyLinkedListSort

{

 public static void main(String a[])

{

        LinkedList list = new LinkedList();

        list.add(new Empl("Ram",3000));

        list.add(new Empl("John",6000));

        list.add(new Empl("Crish",2000));

        list.add(new Empl("Tom",2400));

        Collections.sort(list,new MySalaryComp());

        System.out.println("Sorted list entries: ");

        for(Empl e:list)

        {

            System.out.println(e);

        }

    }

}

class MySalaryComp implements Comparator

{

public int compare(Empl e1, Empl e2)

{

        if(e1.getSalary() < e2.getSalary())

        {

            return 1;

        }

        else

       {

            return -1;

        }

    }

}

 class Empl

{

     

    private String name;

    private int salary;

public Empl(String n, int s)

          {

        this.name = n;

        this.salary = s;

 }   

public String getName()

   {

        return name;

    }

    public void setName(String name)

    {

        this.name = name;

    }

    public int getSalary()

   {

        return salary;

    }

    public void setSalary(int salary)

    {

        this.salary = salary;

    }

    public String toString()

    {

        return "Name: "+this.name+"-- Salary: "+this.salary;

    }

}