About else-if statement

Question

int age = 25;
if(age <= 0) {
System.out.println("Error");
} else if(age <= 16) {
System.out.println("Too Young");
} else if(age < 100) {
System.out.println("Welcome!");
} else {
System.out.println("Really?");

for the code given in the course, why don't both 'Welcome' and 'Really' get printed?
Why does 'Really' get printed only when input >=100?

Answer 1

That's because the else block is a fallback when all other (previously specified in if and else if) conditions fail.
So, Really? will only get printed when age is not under 100.