+ 2
What the following statement means and what will b the output??
int x=5; x= ! (x>8)?1:0; System.out.println (x);
3 Respostas
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1
! means negation, i.e, !(true) == false.
Ternary operator is used for writing a simple if-else statement on a single line. It's syntax is:
condition ? value_if_true : value_if_false;
You can write it in a traditional if-else block as:
if (condition) {
// code if condition was true
} else {
// handle false case
}
As x = 5, x > 8 evaluates to false and !(false) == true. So,
x = true ? 1 : 0;
evaluates to x = 1.
+ 2
Meaning:
1) int x=5;
It creates an int variable called x. Its value is 5
2) x=! (x>8)?1:0;
It checks if x value is not greater than 8 (x value is 5), so the returned value is 1 (because of result is true: x is not greater than 8) and then assigns 1 to x
3) System.out.println (x);
It prints x
Output:
1
Remember:
(condition)?statementIfTrue:statementIfFalse;
is equivalent to:
if (condition){
statementIfTrue;
}
else {
statementIfFalse;
}
0
as x=5 therefore (x>8)==false hence
!(x>8)==true here the result will be 1
hope this was helpful 🙂