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Rolta Core Java Interview Questions
Questions Answers Views Company eMail

How will you measure that int takes up only 32 bits in memory?

2 4803

Map map = new HashMap(2); map.add(“1”,”one”); map.add(“2”,”two”); map.add(“3”,”three”); What will happen at this line?

5 13742

Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.

2275

Can we iterate through collection using for loop?

2 5169

Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?

1 7394

What will be the output of the program? public class Test { public static void main(String args[]) { ArrayList list = new ArrayList(); list.add("2"); list.add("3"); list.add("4"); list.add("5"); System.out.println("size :"+list.size()); for(int i=0;i 5 6905


What is the use of static import ?

4 8401

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