What is going on in this piece of logic ? Java, parenthesis

Question

private int hour;
private int minute;
private int second;

public void setTime(int h, int m, int s){
hour = ((h>=0 && h < 24) ? h : 0);
}

from this mrbostons java tutorial:

https://www.thenewboston.com/videos.php?cat=31&video=18001

Though you could (?) write the same code with a if statement, I'd like to know what is going on in this code and how I use it in other places

Answer 1

Here is the equivalent of

hour = ((h>=0 && h < 24) ? h : 0);

with if/elses :

if(h>=0 && h < 24) 
    hour = h;
else
    hour = 0;

The first notation is using a ternary operator.

Answer 2

hour = ((h>=0 && h < 24) ? h : 0);

if h is greater than or equal to zero, and less than 24, then set hour to the value of h, else set hour to zero.