Why does this if statement, with an assignment and equality check, evaluate to false?

Question

How does a Java *if statement* work when it has an assignment and an equality check `OR`-d together?? public static void test() { boolean test1 = true; if (test1 = false || test1 == false) { System.out.println("TRUE"); } else { System.out.println("FALSE"); } } Why is this printing FALSE?

Answer 1

The order of mixed operations is different in Java....

In this case, == is highest, followed by ||.

assignment operator = is lowest priority...

So it goes like this:

test1==false returns false since test1 is assigned true to begin with,

This get OR'ed with (test1=false) which makes test1 false and RETURNS a value of false.

False or false is false.

Answer 2

The assignment is done last.

== has priority over ||

prior to the if statement, test1 has value true.

so false || (true==false) evaluates to false.

False is the assigned to test1 and then the else statement is executed.