can anyone explain this?

Question

public class Program
{
public static void main(String[] args) {
boolean b= true;

for(int i=0; i<10; i++)
if(b=!b)
System.out.print(i);
}
}

output: 13579

Answer 1

b = true, !b = false because we declared b as true. we said b = !b. b is now becoming false and because of that it always by pass by 2 (i = 0 then b is false, i = 1 value is changed to true, i = 2 b is false again etc) because in every new intereation they change value.
b must be true to get inside of if

Answer 2

thanks