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Questions and Answers
Which line of code will always yield an index out of bounds error?
Which line of code will always yield an index out of bounds error?
- System.out.println(arr[arr.length + 2])
- System.out.println(arr[arr.length + 1])
- System.out.println(arr[arr.length - 1])
- System.out.printn(arr[arr.length]) (correct)
What is the correct output of the following line of code: System.out.println(arr[arr.length - 1])?
What is the correct output of the following line of code: System.out.println(arr[arr.length - 1])?
- The index of the last element of the array
- The length of the array
- The last element of the array (correct)
- The first element of the array
What is the value of arr.length in the given example?
What is the value of arr.length in the given example?
- 6
- 4
- 7
- 5 (correct)
Which of the following best describes a two-dimensional array?
Which of the following best describes a two-dimensional array?
What is the main difference between a primitive data type and a data structure?
What is the main difference between a primitive data type and a data structure?
In the context of arrays, what does it mean for an element to be a multiple item array?
In the context of arrays, what does it mean for an element to be a multiple item array?
Which of the following is the correct way to declare an array in Java?
Which of the following is the correct way to declare an array in Java?
Which of the following best describes an array in Java?
Which of the following best describes an array in Java?
What is the default value of elements in an integer array in Java?
What is the default value of elements in an integer array in Java?
Why is it important to initialize the elements of an array in Java?
Why is it important to initialize the elements of an array in Java?
Which of the following is the correct formula to locate a particular element in an array?
Which of the following is the correct formula to locate a particular element in an array?
What is the output of the following code snippet?
int[] myOtherIntArray = {2, 4, 23, 343, 8978};
System.out.println("The length of the array is " + myOtherIntArray.length);
What is the output of the following code snippet? int[] myOtherIntArray = {2, 4, 23, 343, 8978}; System.out.println("The length of the array is " + myOtherIntArray.length);
What is the correct way to declare and initialize an array with the values 1, 2, and 3?
What is the correct way to declare and initialize an array with the values 1, 2, and 3?
What type of error is caused when trying to access an array element that does not exist?
What type of error is caused when trying to access an array element that does not exist?
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