How to Use @findby Annotation in Selenium Java

MyAccountPage.java

public class MyAccountPage {

public MyAccountPage(final WebDriver driver) {
PageFactory.initElements(driver, this);
}

@FindBy(css = "#content > div:nth-child(1) h2")
@CacheLookup
private WebElement myAccountTitle;

public String getMyAccountPageTitle() {
return this.myAccountTitle.getText();
}

@FindAll({
@FindBy(how = How.LINK_TEXT, using = "Logout"),
@FindBy(how = How.CSS, using = "#column-right > div > a:nth-child(14)")
})
private WebElement logoutLink;

public void logoutFromEcommercePlayground() {
this.logoutLink.click();
}
}