What package is arraylist?
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What is two-dimensional array?
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.
What is heap and its types?
What happens in insertion sort?
Which is better arraylist or linkedlist?
in tree construction which is the suitable efficient data structure? (Array, linked list, stack, queue)
Why do we use arrays?
Which collection class is thread safe?
What is non linear data structure with example?
Can we change the size of an array at run time?
What data structure would you mostly likely see in a non recursive implementation of a recursive algorithm?
How do you replace an element in an arraylist?