Question

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How do I compare strings in Java?
Java String.equals versus ==

I am new to Selenium and Java.

I have tried the below to compare the field value of last name to the one which i supplied.

String lastname=selenium.getValue("//*[@id='lastName']");
System.out.println(lastname);
assertTrue (lastname == "xxx");

It is keep on failing.

Just literally tried to change the last line with help of Eclipse (just trial and error)

assertTrue("lastname.equals("xxx")); 

It is working fine… Why it is failed in first case? == is not allowed to compare strings?

Answer 1

Short answer: == checks for same object .equals checks for the same value.

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