Interview Questions

Q:

What is the output of this program ?

class main_arguments {
            public static void main(String [ ] args)
            {
                String [][] argument = new String[2][2];
                int x;
                argument[0] = args;
                x = argument[0].length;
                for (int y = 0; y < x; y++)
                    System.out.print(" " + argument[0][y]);           
            }
        }

A) 1 1 B) 1 0
C) 1 0 3 D) 1 2 3
 
Answer & Explanation Answer: D) 1 2 3

Explanation:

In argument[0] = args;, the reference variable arg[0], which was referring to an array with two elements, is reassigned to an array (args) with three elements.
Output:
$ javac main_arguments.java
$ java main_arguments
1 2 3

Report Error

View Answer Report Error Discuss

Filed Under: Java
Exam Prep: GATE

7 95742
Q:

Which of the following can't be done with client-side JavaScript?

A) Sending a form's contents by email B) Storing the form's contents to a database file on the server
C) Validating a form D) None of the above
 
Answer & Explanation Answer: B) Storing the form's contents to a database file on the server

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Web Technology

50 65855
Q:

A phrase expressing the aim of a group or party?

Answer

a_phrase_expressing_the_aim_of_a_group_or_party1538566769.jpg image


 


The aim of a group or party must be


• The mission or purpose of the group - what business they are in.


• The vision or direction they are headed - often expressed as the impact they want to have distinct from their purpose. 


• The strategies for how they will get from where they are today to where they are headed; these are broadly stated, like a 50,000-foot overview, and are typically few in number, usually no more than 3-5 key areas of focus. 


• The goals and objectives for how the strategies will be implemented; these are sometimes referred to as tactics or operational plans; there is usually no specific limit on the number of these, and they are more specific and not so far out in the future, often 1-2 years or less.

Report Error

View answer Workspace Report Error Discuss

37 63407
Q:

The main components of market risk are 

a) Liquidity risk     b) Interest rate risk       c) Currency risk

A) Only a B) both a and b
C) only c D) all a, b and c
 
Answer & Explanation Answer: D) all a, b and c

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Bank Interview
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

12 54897
Q:

class Hell {

public static void main(String[] args) {

Integer i = 42;

String s = (i<40)?"life":(i>50)?"base":"ball";

System.out.println(s);

}

}

A) null B) ball
C) base D) None
 
Answer & Explanation Answer: B) ball

Explanation:

D is correct. This is a ternary nested in a ternary with a little unboxing thrown in.Both of the ternary expressions are false.

Report Error

View Answer Report Error Discuss

Filed Under: Java

9 51470
Q:

try { int x = Integer.parseInt("two"); }

Which could be used to create an appropriate catch block?

A) ClassCastException B) IllegalStateException
C) NumberFormatException D) None
 
Answer & Explanation Answer: C) NumberFormatException

Explanation:

C is correct. 'Integer.parseInt' can throw a NumberFormatException, and IllegalArgumentException is its superclass 

Report Error

View Answer Report Error Discuss

Filed Under: Java

9 50866
Q:

What is the difference between agglomerative and divisive Hierarchical Clustering?

Answer

- Agglomerative Hierarchical clustering method allows the clusters to be read from bottom to top and it follows this approach so that the program always reads from the sub-component first then moves to the parent. Whereas, divisive uses top-bottom approach in which the parent is visited first then the child. 


- Agglomerative hierarchical method consists of objects in which each object creates its own clusters and these clusters are grouped together to create a large cluster. It defines a process of merging that carries on till all the single clusters are merged together into a complete big cluster that will consists of all the objects of child clusters. Whereas, in divisive the parent cluster is divided into smaller cluster and it keeps on dividing till each cluster has a single object to represent.

Report Error

View answer Workspace Report Error Discuss

6 49731
Q:

main() {

int i;

printf("%d",scanf("%d",&i)); // value 10 is given as input here

}

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:

Scanf returns number of items successfully read and not 1/0. Here 10 is given as input which should have been scanned successfully. So number of items read is 1.

Report Error

View Answer Report Error Discuss

Filed Under: Java

5 48028