Explore topic-wise MCQs in Technical MCQs.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.

1.

How to copy contents of array?

A. System.arrayCopy()
B. Array.copy()
C. Arrays.copy()
D. Collection.copy()
E.
Answer» B. Array.copy()
Discussion
2. 

  Object[] names = new String[3];names[0] = new Integer(0);
24.How to sort an array?

A. Array.sort()
B. Arrays.sort()
C. Collection.sort()
D. System.sort()
Answer» C. Collection.sort()
Discussion
3. 

int a[], b;int []c, d;
23.Which of these is necessary to What is the output of below snippet?specify at time of array initialization?

A. ArrayIndexOutOfBoundsException
B. ArrayStoreException
C. Compilation Error
D. Code runs successfully
Answer» C. Compilation Error
Discussion
4.

What is the type of variable "b" and "d" in the below snippet?

A. "b" and "d" are int
B. "b" and "d" are arrays of type int
C. "d" is int variable; and "b" is int array
D. "b" is int variable; and "d" is int array
Answer» E.
Discussion