What is a hashmap used for?

0 Answers  

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What are the data types supported by java?

0 Answers  

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Program to find greatest prime number in n numbers?

3 Answers   Huawei,

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

5 Answers   Rolta,

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How do you implement polymorphism in our day to day life?

0 Answers   Cap Gemini,

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What is comparable and comparator interface? List their differences

0 Answers  

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What is null object in java?

0 Answers  

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How does callback work in java?

0 Answers  

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What is java full form?

0 Answers  

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Difference between method overloading and overriding.

0 Answers  

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Can we create constructor in abstract class ?

0 Answers  

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How Array List can be Serialized.

7 Answers   Polaris,

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