Use Switch for element instead of if/elseif
<pre><code>public void profileSection(String displayName, String fName, String lName, String Address_1,) throws Exception
{
    myAccountPageNative(CONSTANTs.MY_ACCOUNT_LINK);
    clickLink(CONSTANTs.MY_PROFILE_SECTION);        

    if(driver.findElement(By.cssSelector(CONSTANTs.DISPLAY_NAME_TXTBOX)).isDisplayed())
    {
        log.step("Optional..... BUT you will need it when Commenting on any article....");
        elementPresent_Click(By.cssSelector(CONSTANTs.DISPLAY_NAME_TXTBOX), displayName);
        Thread.sleep(2000);
    }else if(driver.findElement(By.cssSelector(CONSTANTs.MYACCT_EMAIL_TXTBOX)).isDisplayed())
    {
        log.step("Check if Email txtbox is enabled or not...... pls wait.");
        txtBoxDisabled(By.cssSelector(CONSTANTs.MYACCT_EMAIL_TXTBOX),null);
        Thread.sleep(2000); 
        log.step("Text box is disabled..... move to next step");
        Thread.sleep(2000);
    }else if(driver.findElement(By.cssSelector(CONSTANTs.FIRST_NAME)).isDisplayed())
    {
        log.step("Input First Name......");
        txtBoxDisabled(By.cssSelector(CONSTANTs.FIRST_NAME),fName);
        Thread.sleep(2000);
    }else if(driver.findElement(By.cssSelector(CONSTANTs.LAST_NAME)).isDisplayed())
    {
        log.step("Input Last Name......");
        txtBoxDisabled(By.cssSelector(CONSTANTs.LAST_NAME),lName);
        Thread.sleep(2000);
    }else if(driver.findElement(By.cssSelector(CONSTANTs.ADDRESS_1)).isDisplayed())
    {
        log.step("Input Address 1......");
        txtBoxDisabled(By.cssSelector(CONSTANTs.ADDRESS_1),Address_1);
        Thread.sleep(2000);
    }
        log.step("Click Save Changes Button......");
        txtBoxDisabled(By.cssSelector(CONSTANTs.SAVE_CHANGES_BTN),null);            
    }
</code></pre>

<blockquote>
  <p>Please am trying to use a switch instead of too many if statements. just to make my code more readable. Since switch evaluates a single variable, Can i use switch with my code cos it looks a bit more complex i guess.
  An suggestion please, as all have different element to be selected using css Selector.</p>
</blockquote>

<p>Thanks in Advance.</p>