Difference between find element () and findelements ()

Difference between find element () and find elements ()?

findElement() :

Find the first element within the current page using the given "locating mechanism".

Returns a single WebElement.

Syntax: WebElement findElement(By by)

Ex:

driver.get("http://ruchi-myseleniumblog.blogspot.in/"); 

WebElement widget = driver.findElement(By .xpath(".//*[@id='BlogArchive1_ArchiveList']"));

widget.click();

findElements() :

Find all elements within the current page using the given "locating mechanism".

Returns List of WebElements.

Syntax: 
        WebElement ullist = driver.findElement(By.className("posts"));

List<WebElement> posts = ullist.findElements(By.tagName("li"));

System.out.println("List of Posts are Below");

for (int i = 0; i < posts.size(); i++) {

String post = posts.get(i).findElement(By.tagName("a")).getText();

System.out.println(post);

}

Sample Program:

package programs;

import java.util.List;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.annotations.Test;

public class Sample {
WebDriver driver;

@Test
public void test() {

driver = new FirefoxDriver();
driver.get("http://ruchi-myseleniumblog.blogspot.in/");
WebElement widget = driver.findElement(By
.xpath(".//*[@id='BlogArchive1_ArchiveList']"));
WebElement hierarchy = widget.findElement(By.className("hierarchy"));
System.out.println("Year is "
+ hierarchy.findElement(By.className("post-count-link"))
.getText());
System.out.println("Year-Posts size  is "
+ hierarchy.findElement(By.className("post-count")).getText());
WebElement sublist = hierarchy.findElement(By.className("hierarchy"));
System.out.println("Month is "
+ sublist.findElement(By.className("post-count-link"))
.getText());
System.out.println("Month-Posts size  is "
+ sublist.findElement(By.className("post-count")).getText());
WebElement ullist = driver.findElement(By.className("posts"));
List<WebElement> posts = ullist.findElements(By.tagName("li"));
System.out.println("List of Posts are Below");
for (int i = 0; i < posts.size(); i++) {
String post = posts.get(i).findElement(By.tagName("a")).getText();

System.out.println(post);
}
driver.close();
}


}

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