Analyze the following code:

Question

```
boolean even = false;
if (even = true) {
System.out.println("It is even");
}
```
a. The program has a compile error.
b. The program has a runtime error.
c. The program runs fine, but displays nothing.
d. The program runs fine and displays It is even.

Answer 1

d. The program runs fine and displays It is even.
It is a common mistake to use the = operator in the condition test. What happens is that true is assigned to even when you write even = true. So even is true. The program compiles and runs fine and displays "It is even".