What is array and its types?
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Is hashmap synchronized?
Can a null element added to a treeset or hashset?
Define level of the tree?
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.
Define a complete binary tree?
Explain the common uses of tree database.
Write a program using mergesort technique.
Does treemap allow null values?
Differentiate between hashset and hashmap.
write a code for Implementation of stack and queues.
What are data and data types?
What are different techniques for making hash function? Explain with example.