10 Questions
In practice 6.09, what does the code segment count in the 'values' array?
The number of even elements
What is missing in the code in practice 6.10 to correctly manipulate array elements?
values[k] = Math.pow(values[k], 2);
How would you correctly call the 'display' method with the 'values' array in practice 6.11?
display(values);
How can you complete the 'firstPlusLast' method in practice 6.13 to return the sum of the first and last elements of an array?
array[0] + array[array.length - 1];
Which of the following is the correct way to create an array with 20 double elements?
double[] array = new double[20];
Given the declaration int[] array = {4, 3, 5, 2, 0};, what is the value of array[2]?
5
Which of the following statements would cause a run-time error with the declaration int[] array = {4, 3, 5, 2, 0};?
array[5] = 10;
What output is generated by the code segment below? int[] values = new int[5]; for (int k = 0; k < values.length; k++) { values[k] = k * 2; } System.out.println(values);
[0, 2, 4, 6, 8]
Insert the missing statement in the code fragment to initialize the array elements with the values 1, 2, 3,..., 100. int[] numbers = new int[100]; for (int k = 0; k < numbers.length; k++) { }
numbers[k] = k + 1;
What output is generated by the code fragment below? int[] values = {1, 3, 1, 3, 1}; int[] numbers = values; for (int k = 0; k < values.length; k++) { values[k] = k * 2; } System.out.print(values); System.out.print(" " + numbers);
[0, 2, 4, 6, 8] [0, 2, 4, 6, 8]
Test your knowledge on array declaration and initialization in programming languages. This quiz covers topics such as creating arrays, initializing elements, and identifying syntax errors. Practice your skills with different scenarios and improve your understanding of array manipulation.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
