What is the difference between == and =??

Answer 1

== compares two expresions, if they have the same value returns true and if they are different returns false.
= is the asigment operator. It takes the value of whatever is on the right and asigns it to the variable which is on the left.

Answer 2

= assignment
== compare two variable
=.,=

Answer 3

== is used to in if statements and returns a boolean expression and = is used to assign value to a variable.

Answer 4

== operator will compares the expression while = will assign the values to user defined variables