10 Questions
Which of the following is a valid way to declare an integer array in Java?
int[] numbers = new int[5];
Which method is used in Java to compare the equality of two arrays?
Arrays.equals()
What is the purpose of Arrays.copyOf() method in Java?
To create a shallow copy of an array
Which method should be used to search for an element in a sorted array in Java?
Arrays.binarySearch()
If you want to sort an array of integers into descending order, which method should you use?
Arrays.sort() with custom Comparator
When declaring a new integer array in Java, what is the default initial value for each element?
0
'Arrays.fill()' method in Java is used for what purpose?
'0' initializing all elements of an array with a specific value
'Arrays.toString()' method in Java is used for?
'0' converting an array into a String representation
'Arrays.asList()' method in Java is used for what purpose?
'0' converting an array into a List
'Arrays.copyofRange()' method in Java is used for what purpose?
'0' converting a range of elements in an array into a new array
Learn about arrays, which are used to store multiple values of the same data type. Explore how arrays work by imagining them as a series of labeled boxes, with each box holding a value accessible through an index number. Discover how to declare and create arrays using square brackets and the 'new' keyword.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
