
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Write a function that receives an integer. The function must return a string containing the
hexadecimal representation of the integer.
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- Write a function that converts a floating-point number to a string. Provide a parameter variable for the number of digits after the decimal point. util.cpp 3 1 #include #include #include #include 6 using namespace std; 7 8 string double_to_string(double x, int digits) 9 { 10 11 } CodeCheck Resetarrow_forwardC++ : Write a function that inserts a given string in the middle of a second string. If the second string has an oddnumber of characters, the program first repeats the last character before inserting. Write a program to test your function.arrow_forwardplease code in pythonis_phone_num: This Boolean function takes a string and returns True if it is in the formatddd-ddd-dddd, where d is a digit, False otherwise. Example calls:is_phone_num('123-456-7890') --> Trueis_phone_num('123-4556-7890') --> Falseis_phone_num('(123)456-7890') --> Falsearrow_forward
- Using Python write a string-comparison function named strNcompare that compares up to n characters of a string s1 with the other string s2. The function must return 0, -1, or 1 if the first n-character portion of s1 is equal to, less than, or greater than the corresponding first n-character portion of s2, respectively. (1) You must use the following function definition: def strNcompare(s1, s2, n): (2) String comparison must be case-insensitive. For example, the strNcompare function must return 0 for the s1 value of ‘tommy’ and the s2 value of ‘TOMMY’. (3) You should not use a loop such as the while loop and the for loop inside the strNcompare function. Then write a Python program that receives two words and the number of characters for comparison, calls the strNcompare function, and then shows the result. Your program keeps doing this until the user enters the value of -1. Your program displays the message ‘String comparison [1(play), -1(quit)]: ’ and receives the value 1 or -1…arrow_forward3. Using c++ Write a function that accepts an integer n and returns -1 if n is less than zero and the sum of all the integers between 0 and n (inclusive) if n is greater than or equal to zero.arrow_forward3. Define a function called reverse (aString) that return the string in reverse order.arrow_forward
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