Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
For function decToBinary, write the missing parts of the recursion case. This function should return a string that stores the binary equivalent for int variable num. Example: The binary equivalent of 13 may be found by repeatedly dividing 13 by 2. So, 13 in base 2 is represented by the string "1101".
Examples: decToBinary(13) -> "1101"
public String decToBinary (int num) {
if (num < 2)
return Integer.toString(num);
else
return <<Missing recursive call>> + <<Missing calculation>>;
}
if (num < 2)
return Integer.toString(num);
else
return <<Missing recursive call>> + <<Missing calculation>>;
}
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