C Programming - Control Instructions - Discussion
Discussion Forum : Control Instructions - Point Out Correct Statements (Q.No. 4)
4.
Which of the following statements are correct about an if-else statements in a C-program?
| 1: | Every if-else statement can be replaced by an equivalent statements using ?: operators |
| 2: | Nested if-else statements are allowed. |
| 3: | Multiple statements in an if block are allowed. |
| 4: | Multiple statements in an else block are allowed. |
Discussion:
25 comments Page 1 of 3.
Hemanth kumar.v said:
5 years ago
Actually, ?: this indicates that conditional operator,we use this ?: as an alternative for if-else functions limitedly.
Panchangam Chidrupi said:
5 years ago
What is the difference between = and == operators? Please tell me.
Noel said:
5 years ago
I disagree with the answer because one can write nested ternary operators equating nested if else statements.
Vrushabh said:
6 years ago
I think all four options are correct. because we can replace every if-else with ?: even nested ones also.
eg. if(a==5){
if(b==5){
printf("%d",b);
}
else{
printf("%d",b+1);
}
}
else{
printf("%d',a);
}
It can be replaced by.
(a==5)?(b==5?printf("%d",b):printf("%d",b+1)):printf("%d',a);
eg. if(a==5){
if(b==5){
printf("%d",b);
}
else{
printf("%d",b+1);
}
}
else{
printf("%d',a);
}
It can be replaced by.
(a==5)?(b==5?printf("%d",b):printf("%d",b+1)):printf("%d',a);
(2)
Shalin said:
6 years ago
return x>y?1:0;
It will work.
I think question is misprinted, first one is correct
Tell me a single example which cannot be converted.
It will work.
I think question is misprinted, first one is correct
Tell me a single example which cannot be converted.
Pawan kumar saini said:
7 years ago
We can't use return statements in ?: whereas we can use it in if else blocks.
So option D is true.
So option D is true.
Gayatri Walmik said:
7 years ago
Can anyone please explain why the first option is incorrect?
Gayatri Walmik said:
7 years ago
We can use ?: for nested if else statements too. Like if (x>5? (x>10?x=1:x=2) :x=3).
What does it mean by multiple if else statements?
What does it mean by multiple if else statements?
Nehal said:
7 years ago
One more thing that we cannot use return in conditional statement.
Ummul said:
7 years ago
Option D is correct. Since there are some if statements which do not have any else part and they cannot be converted into ?: So 3 conditions are fulfilled but first condition is not fulfilled.
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