
Java - SET -1
Authored by R GIRIDHARAN
Computers
University
java covered
Used 19+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is correct about an array in Java?
Its size can be changed dynamically
It starts with index 1
All elements have the same data type
Array elements can have mixed data types
Tags
java
array
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does the indexing of an array start and end if there are 'n' elements?
Starts at 0, ends at n
Starts at 1, ends at n-1
Starts at 0, ends at n-1
Starts at 1, ends at n
Tags
java
array
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In which of the following declarations, both arr1 and arr2 are arrays?
int[] arr1, arr2;
int arr1[], arr2;
Int []arr1, arr2;
None of the above
Tags
java
array
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What will be the default values of elements in an integer array in Java?
0
null
-1
Undefined
Tags
java
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For a boolean array in Java, which of the following will be the default value for its elements?
0
null
true
false
Tags
java
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following methods is used to create arrays dynamically at runtime in Java?
using `malloc()`
using `new` keyword
using `define`
using `sizeof()`
Tags
java
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is correct about initializing an array in Java?
Elements can only be initialized during array declaration
All elements are automatically initialized to their default values when using the `new` keyword
Array initialization can only be done using the initialization block
None of the above
Tags
java
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