U2opia Mobile Interview Experience

Applied through Greymeter and received call next day for the recruitment process of Software Enginner(Product Development-C, C++, Java)

Test started with Written Tests

Comprises of 11 Questions Java,20 Questions c++ and 20 Questions Analytical ability

In Java,C++ questions were totally concept based and you have to attempt all of them as there is no negative marking.

Java:

String s1 = "Hello";
String s2 = "Hello";
if(s1==s2)
    System.out.println("Yes");
else
    System.out.println("No");



String s1 = "Hello";

if(s1=="Hello")
    System.out.println("Yes");
else
    System.out.println("No");

if(s1.substring(0,3)=="Hel")
    System.out.println("Yes");
else
    System.out.println("No");

What interface or class you have to implement or extend to override java’s default mechanism : ________________________

Which one of the following is thread safe
1.StringBuffer
2.StringBuilder

What are the ways you can implement threading in java.
____________________

______________________

_______________________

C++:

int *p=10;
cout<<*p;

int *p=10;
count<<p;

how to get address of float type variable
1. &
2. float (&)

C inherit B and B inherit A, what are the data types of B and A ,C can access
1.Protected and Public
2.Public and Private
3.Private Only
4.Protected Only

Aptitude :

Questions were based on following types:

1.Speed Distance Time
2.Profit and Loss
3.Geometry
4.Average

Technical Interview (First Round) :

1. Differences between C++ and Java ? How is java platform Independent ?
2. Garbage Collection ? Why java perform its own garbage Collection ? what was the problem with delete and free in C,C++?
3. Thread Implementation ? Daemon threads ? How to implement ? What is the difference between thread and a process ?
4. Abstract class vs Inteface ? Give scenarios for which two different concepts are introduced ?
5. Interviewer wrote 5-6 programs based on Strings,Threading,Exception Handling,dynamic method dispatch and ask me to find Errors,Correct them and give the final output.

Technical Interview 2(Second Round):

1. He draw a tree structure on board and ask me to store the structure in a table without disturbing relations.
2. How to implement Automatic Garbage collection in C++?
3. Write a program for queue ?

HR Round :

Discussion about Products company made till date, and what my role will be if I got selected.