Why do we use linked lists?
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What is difference between hashmap and hashtable?
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.
How do you define a set?
What are the 4 types of data?
Who invented merge sort?
Which sorting is used in collections sort?
Can we sort hashmap?
Can a null element added to a treeset or hashset?
What is difference between static and dynamic array?
Describe full binary tree and complete binary tree.
What do you mean by general trees?
What is binary tree? Explain its uses.