Class 7 Exam > Class 7 Questions > For what values of the expression is an if-st...
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For what values of the expression is an if-statement block not executed?
- a)0 and all negative values
- b)0 and -1
- c)0
- d)0, all negative values, all positive values except 1
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
For what values of the expression is an if-statement block not execute...
Explanation:
The if-statement block is a conditional statement that is executed only when a certain condition is met. In this case, the condition is the value of the expression.
Let's analyze each option to determine which values will cause the if-statement block not to be executed:
Option A: 0 and all negative values
- If the expression evaluates to 0 or any negative value, the if-statement block will not be executed.
- This means that if the value is 0 or less than 0, the code inside the if-statement block will not be executed.
Option B: 0 and -1
- If the expression evaluates to 0 or -1, the if-statement block will not be executed.
- This means that if the value is 0 or -1, the code inside the if-statement block will not be executed.
Option C: 0
- If the expression evaluates to 0, the if-statement block will not be executed.
- This means that if the value is 0, the code inside the if-statement block will not be executed.
Option D: 0, all negative values, all positive values except 1
- If the expression evaluates to 0, any negative value, or any positive value except 1, the if-statement block will not be executed.
- This means that if the value is 0, negative, or any positive value except 1, the code inside the if-statement block will not be executed.
Conclusion:
Based on the given options, only option C states that the if-statement block is not executed for the value 0. Therefore, the correct answer is option C.
The if-statement block is a conditional statement that is executed only when a certain condition is met. In this case, the condition is the value of the expression.
Let's analyze each option to determine which values will cause the if-statement block not to be executed:
Option A: 0 and all negative values
- If the expression evaluates to 0 or any negative value, the if-statement block will not be executed.
- This means that if the value is 0 or less than 0, the code inside the if-statement block will not be executed.
Option B: 0 and -1
- If the expression evaluates to 0 or -1, the if-statement block will not be executed.
- This means that if the value is 0 or -1, the code inside the if-statement block will not be executed.
Option C: 0
- If the expression evaluates to 0, the if-statement block will not be executed.
- This means that if the value is 0, the code inside the if-statement block will not be executed.
Option D: 0, all negative values, all positive values except 1
- If the expression evaluates to 0, any negative value, or any positive value except 1, the if-statement block will not be executed.
- This means that if the value is 0, negative, or any positive value except 1, the code inside the if-statement block will not be executed.
Conclusion:
Based on the given options, only option C states that the if-statement block is not executed for the value 0. Therefore, the correct answer is option C.
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Community Answer
For what values of the expression is an if-statement block not execute...
The if-statement block is only not executed when the expression evaluates to 0. its just syntactic sugar for a branch-if-zero instruction.
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