The Code Snippet Below Checks Whether a Given Number Is

question 58

Multiple Choice

The code snippet below checks whether a given number is a prime number. What will be the result of executing it? public static void main(String[] args)
{
Int j = 2;
Int result = 0;
Int number = 0;
Scanner reader = new Scanner(System.in) ;
System.out.println("Please enter a number: ") ;
Number = reader.nextInt() ;
While (j <= number / 2) // better is while (j * j <= number)
{
If (number % j == 0)
{
Result = 1;
}
J++;
}
If (result == 1)
{
System.out.println("Number: " + number + " is Not Prime.") ;
}
Else
{
System.out.println("Number: " + number + " is Prime. ") ;
}
}

• A) The code snippet will not compile.
• B) The code snippet will display the desired result.
• C) The code snippet will display an incorrect result. // incorrect if number is 1
• D) The code snippet will loop forever.

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Definitions:

Chi-square Value

A statistical measure used to determine if a significant difference exists between the frequencies of observed and expected outcomes in one or more categories.

Respondents

Individuals who answer or respond to a survey or questionnaire.

Variable

A characteristic, number, or quantity that can be measured or quantified and can vary among subjects or over time.

Significance Level

The probability of rejecting the null hypothesis when it is actually true, often denoted by alpha and used in statistical hypothesis testing.