java - Detect if radio button is checked in webdriver -

i trying validate if radio button checked. have below html code snippet radio button .

<span class="jquery-hp-radio jquery-hp-radio-checked" style="-moz-user-select: none;"> <span class="mark"> <img src="http://someurl/images/empty.gif"> </span> </span> 

tried below code -

if(driver.findelement(by.classname("mark")).isselected()){           system.out.println("true");       }else       {           system.out.println("false");       }        } 

it gives output false - though radio button selected default.

i believe radio button's class jquery-hp-radio jquery-hp-radio-checked when checked.

so following check if button checked or not

if(driver.findelement(by.xpath("//span[@class='mark']/..")).getattribute("class").contains("checked")){           system.out.println("true");       }else       {           system.out.println("false");       }      }