List and set

Difference between List and Set in Java::
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List and Set both are interfaces. They both extends Collection interface. In this post we are discussing the differences between List and Set interfaces in java.

List allows duplicates while Set doesn’t allow duplicate elements. All the elements of a Set should be unique if you try to insert the duplicate element in Set it would replace the existing value.

 List implementations: ArrayList, LinkedList etc.
 
 Set implementations: HashSet, LinkedHashSet, TreeSet etc.

EX: List

public class ListExample {

 public static void main(String[] args) {
   List<String> al = new ArrayList<String>();
   al.add("Chaitanya");
   al.add("Rahul");
   al.add("Ajeet");
   System.out.println("ArrayList Elements: ");
   System.out.print(al);

   List<String> ll = new LinkedList<String>();
   ll.add("Kevin");
   ll.add("Peter");
   ll.add("Kate");
   System.out.println("\nLinkedList Elements: ");
   System.out.print(ll);
 }
}

Output:
ArrayList Elements:
[Chaitanya, Rahul, Ajeet]
LinkedList Elements:
[Kevin, Peter, Kate]

Set Example:

public class SetExample {

  public static void main(String args[]) {
    int count[] = {11, 22, 33, 44, 55};
    Set<Integer> hset = new HashSet<Integer>();
    try{
      for(int i = 0; i<4; i++){
         hset.add(count[i]);
      }
      System.out.println(hset);

      TreeSet<Integer> treeset = new TreeSet<Integer>(hset);
      System.out.println("The sorted list is:");
      System.out.println(treeset);
    }
    catch(Exception e){
        e.printStackTrace();
    }
  }

Output:
[33, 22, 11, 44]
The sorted list is:
[11, 22, 33, 44]

Country Names and Currency List

package com.Test.web;

import java.util.List;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;

public class TableList {

public static void main(String[] args) {

/*
* ##########################################################
* ComponentName : Getting Option
* Description   : It is Web Tables Getting List
*  Created By   : Team
* Creation Date : 10th May 2016
* Author        : T Jagan
* ##########################################################
   */

/*I have write to best scenario display all country name and currency list on rediff.com
* this is easy way  find web tables list on web page
*/
System.out.println("*************************************************");
   System.out.println("Execution is started");

List<WebElement>currencyList;
List<WebElement>rows;
List<WebElement>cells;
System.setProperty("webdriver.chrome.driver", "C:\\chromedriver.exe");
WebDriver driver=new ChromeDriver();
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(15, TimeUnit.SECONDS);
driver.get("http://money.rediff.com/tools/forex");

        rows=driver.findElements(By.xpath("html/body/div[1]/div[5]/div[2]/div[2]/table/tbody/tr"));
   for (int i = 1; i < rows.size(); i++) {
   
    cells=driver.findElements(By.xpath("html/body/div[1]/div[5]/div[2]/div[2]/table/tbody/tr["+i+"]/td"));
    System.out.println("Country Name ::" +cells.get(0).getText());
   
    System.out.println("country Currency Rate::" +cells.get(1).getText());

}


}

}

DrogandDrop Best Example

package com.Test.web;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.interactions.Actions;

     public class DragandDrop {

public static void main(String[] args) {
/*
* ##########################################################
* ComponentName : DragandDrop
* Description   : It Action on WebElement DragandDrop Oparation
*  Created By   : Team
* Creation Date : 1th Aug 2016
* Author        : T Jagan
* ##########################################################
   */

System.out.println("*************************************************");
        System.out.println("Execution is started");

System.setProperty("webdriver.chrome.driver", "C:\\chromedriver.exe");
WebDriver driver=new ChromeDriver();
Actions action=new Actions(driver);

        driver.get("http://www.dhtmlgoodies.com/scripts/drag-drop-custom/demo-drag-drop-3.html");
        driver.manage().window().maximize();
        driver.manage().timeouts().implicitlyWait(15, TimeUnit.SECONDS);
     
        WebElement source=driver.findElement(By.id("box1"));
        WebElement target=driver.findElement(By.id("box101"));
     
        if (source.isDisplayed() && source.isEnabled() && target.isDisplayed() && target.isEnabled())
     
             {
System.out.println("Element is Present");
action.dragAndDrop(source, target);
action.build().perform();
}
             else
             {
            System.out.println("Element not Present");
             }

    }  
     
}