Which of the following statement(s) is/are NOT correct? Tick all correct answer(s). No partial marks and no negative marks.Select one or more:A variable must be declared before using itSwitch statement can only check the fractional valuesNested-if statements cannot check fractional values.
Question
Which of the following statement(s) is/are NOT correct? Tick all correct answer(s). No partial marks and no negative marks.Select one or more:A variable must be declared before using itSwitch statement can only check the fractional valuesNested-if statements cannot check fractional values.
Solution 1
The statements that are NOT correct are:
B. Switch statement can only check the fractional values - This is incorrect because a switch statement in most programming languages can only check integer and character values, not fractional values.
C. Nested-if statements cannot check fractional values - This is incorrect because nested-if statements can check any type of values including fractional values.
Solution 2
The statements that are NOT correct are:
A. A variable must be declared before using it - This statement is generally correct in many programming languages such as C++, Java, and Python. You need to declare a variable to allocate memory space before using it.
B. Switch statement can only check the fractional values - This statement is incorrect. In many programming languages, switch statements do not support fractional values. They typically work with integer and character data types.
C. Nested-if statements cannot check fractional values - This statement is also incorrect. Nested-if statements can check any type of values including fractional values as long as the condition for the if statement is properly written.
So, the correct answers are B and C.
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