Data Structures Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Structures Interview Questions

Questions Answers Views Company eMail

Why is concurrenthashmap thread safe?

922

What is the space complexity of selection sort?

951

What's the difference between a hashtable and a hashmap?

912

What is the application of queue?

902

What is the difference between hashset and linkedhashset?

1007

Why do we use sorting?

867

What is bubble sort with example?

923

What is sorting explain?

917

What is difference between concurrenthashmap and hashtable?

920

Why quicksort is better than merge sort?

915

What is the slowest sorting algorithm?

907

Why quicksort is faster?

851

What is a treemap chart?

848

Which method will arrange the element of an array in alphabetical order?

1998

What is complexity of bubble sort?

882

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Un-Answered Questions { Data Structures }

What do u mean by data type?

878

Can we sort hashmap?

882

Why do we need searching algorithms?

1085

Describe the height term in a tree.

977

What is binary tree example?

946

Can arraylist contain null?

843

Difference between calloc and malloc ?

943

We know that Arrays are objects so why cannot we write strArray.length()?

1609

What are skew trees? For a tree with 4 nodes draw all possible binary? Generalize for n nodes how many binary trees can be drawn?

1032

What is numeric array?

846

Can treemap have duplicate values?

883

What is nonlinear data?

979

How does the size of arraylist increases dynamically?

918

What is data and information explain with example?

962

How to find the duplicate in an array?

954

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