WorksheetsJava Array
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is the default value of an array element of type int in Java?
a)
0
b)
null
c)
undefined
d)
0.0
2.
How do you find the length of an array in Java?
a)
arr.length()
b)
arr.length
c)
arr.size()
d)
arr.capacity()
3.
Which of the following is the wrong way to creates an array of strings?
a)
A) String[] arr = new String[5];
b)
B) String arr = new String[5];
c)
C) String[] arr; arr = new String[5];
d)
D) both A and C
4.
What is the output?
a)
1
b)
4
c)
3
d)
5
5.
How do you initialize an array with the values 1, 2, 3, 4, and 5?
a)
int[] arr = {1, 2, 3, 4, 5};
b)
int[] arr = new int[5]
c)
int arr[] = {1, 2, 3, 4, 5};
6.
What is the index of the first element in an array?
a)
-1
b)
1
c)
0
d)
2
7.
What will the following code print?
a)
1
b)
2
c)
3
d)
4
e)
5
8.
What is the output?
a)
8
b)
11
c)
17
d)
12
9.
What is the output?
a)
[3, 4, 9, 8, 15]
b)
[2, 4, 6, 8, 10]
c)
[3, 2, 9, 4, 15]
10.
What is the answer?
a)
1
b)
3
c)
7
d)
9
100 %
