Automating a button click issue

Question

I'm having some trouble with automating a button test. How can I automate a test with Java&Selenium to auto-click this following button?

<button class="btn btn-default primary-bg btn-lg">Submit</button>

I tried this:

driver.findElement(By.xpath("//button[@class= .btn btn-default primary-bg btn-lg']")).click();

What am I doing wrong? What other solutions are there?

Answer 1

Try to add ' after class=

     driver.findElement(By.xpath("//button[@class=' .btn btn-default primary-bg btn-lg']")).click();

Or maybe

     driver.findElement(By.xpath("//button[@class='btn btn-default primary-bg btn-lg']")).click();