Cracking the Coding Interview: 60 Java Programming Questions and Answers by Mukherjee Chinmoy

Author:Mukherjee, Chinmoy [Mukherjee, Chinmoy]
Language: eng
Format: mobi
Published: 2015-09-10T16:00:00+00:00

Answer: System.out.println(Math.floor(19.7));

Java Interview Question-40. What will happen if you try to compile and run the following code

Public class Test() {

Public static void main(String args[]) {

Int myArray= new int[5];

System.out.println(myArray[0]);

}

}

A. Error: anArray is referenced before it is initialized

B. null

C. 0

D. 5

Answer: C

Java Interview Question-41. Which of the following are true

A. ArrayList Is thread safe

B. Vector is Thread Safe

C. ArrayList and Vector are both List

D. Both Vector and ArrayList uses array as their data structure

E. Vector doubles its size , but ArrayList only increases the capacity to half of current size

F. Vector and ArrayList both implements RandomAccess

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