When multiple fields are used to identify a record, it is called a(n) ________ key
A) natural B) composite C) artificial D) alternate
B
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In addition to writing your own formulas, you can use predefined formulas called _____.
A. functions B. subroutines C. methods D. template formulas
Declare variable sum of type int and initialize it to 0.
Write a Java statement to accomplish each of the tasks.
What attributes would you want for an object that represents a play list containing many songs?
Self-Test Question 27 asked you to think of some attributes for a song object.
Consider a 2-by-3 integer array t.
a) Write a declaration for t. b) How many rows does t have? c) How many columns does t have? d) How many elements does t have? e) Write the names of all the elements in row 1 of t. f) Write the names of all the elements in column 2 of t. g) Write a single statement that sets the element of t in the first row and second column 2 to zero. h) Write a series of statements that initialize each element of t to zero. Do not use a loop. i) Write a nested for statement that initializes each element of t to zero. j) Write a statement that inputs the values for the elements of t from the keyboard. k) Write a series of statements that determine and print the smallest value in array t. l) Write a statement that displays the elements in row 0 of t.