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

Data Structures Interview Questions

Questions Answers Views Company eMail

What is default size of hashmap?

951

Does stringutils isempty check for null?

856

Can arraylist shrink?

951

Can treeset contain duplicates?

981

What does args stand for?

964

How dynamic arrays are created?

953

Can I provide array size dynamically?

984

What is default array size?

1062

How does the size of arraylist increases dynamically?

973

Does treeset allow null values?

946

Does hashmap allow null keys?

925

Can arraylist be empty?

919

Is an arraylist a vector?

1014

How does arraylist size work?

933

Does arraylist extend list?

987

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Un-Answered Questions { Data Structures }

Does linked list allow duplicates?

940

For the following COBOL code, draw the Binary tree? 01 STUDENT_REC. 02 NAME. 03 FIRST_NAME PIC X(10). 03 LAST_NAME PIC X(10). 02 YEAR_OF_STUDY. 03 FIRST_SEM PIC XX. 03 SECOND_SEM PIC XX.

1364

Define right-in threaded tree?

1017

What is the meaning of anonymous array? Explain with an example?

1257

What type of variable is age?

917

What is a class user?

1008

What is heap and its types?

1034

What is modcount in hashmap?

928

Is an arraylist an object?

1031

An array having 100 elements have numbers from 1 to 99 randomly out of which any number is repeated. Find the repeated number in minimum time and space complexity.

1219

What is sorting in data structure?

1007

List the applications of stacks?

1105

How do you check if a stack is empty or not?

890

In what scenario, binary search can be used?

967

What is Jagged Arrays?

1023

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