Tag: programming languages

To solve this question, the user needs to have a basic understanding of the double data type in programming.

The double data type is used to represent decimal numbers with a higher degree of precision than the float data type. It is a 64-bit data type, which means it contains 64 bits of information.

The two parts of a value of type double are:

A. significant digits: This refers to the number of digits in the value that are considered to be accurate. The more significant digits a value has, the more precise it is.

B. exponent: This refers to the power of 10 that the value is multiplied by. The exponent allows for a wider range of values to be represented than would be possible with a fixed number of digits.

C. numerator: This is not a part of a value of type double. The numerator is used in fractions to represent the top part of the fraction.

D. denominator: This is also not a part of a value of type double. The denominator is used in fractions to represent the bottom part of the fraction.

Therefore, the correct answer is:

The Answer is: A

To solve this question, the user needs to know what the indexOf() method does in Java. The indexOf() method returns the index of the first occurrence of a specified substring within a string, or -1 if the substring is not found.

In the given code fragment, the variable s is assigned the string "Foolish boy.", and the indexOf() method is called on this string with the argument "fool". Since the substring "fool" is not present in the original string (due to the capital letter 'F' in the string), the indexOf() method returns -1.

Therefore, the correct answer is:

The Answer is: D. -1

To solve this question, the user needs to understand the basic control flow of the while loop and the concept of variable assignment.

The code initializes the variable k to 0 and the variable n to 12. The while loop continues running as long as the value of k is less than the value of n. In each iteration of the loop, the value of k is incremented by 1.

Since the loop runs 12 times, the value of k will be incremented 12 times. Therefore, at the end of the loop, the value of k will be equal to 12.

Now, let's go through each option and explain why it is right or wrong:

A. O: This option is incorrect because the value of k is incremented 12 times, resulting in a final value of 12, not 0.

B. 11: This option is incorrect because the value of k is incremented 12 times, resulting in a final value of 12, not 11.

C. 12: This option is correct. The value of k is incremented 12 times, resulting in a final value of 12.

D. -3: This option is incorrect because the loop increments the value of k by 1 each time, and the starting value of k is 0. Therefore, the value of k can never be negative.

The Answer is: C