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Topics: Files, Pointers, Functions and Arrays Task 1 Create a C++ project called PntIDNumbers. 1.1 Declare an array called arrIDs that will be able to hold 200 elements. Declare a pointer for the array. 1.2 Open Notepad and create a text file called idnumbers.txt. Make sure that the text file is saved in the same folder as the project. O idnumbers - Notepad File Edit Format View Help 7803045678087 8904050876092 9002017896054 _9408072345087 8703083456098 7812120867087 0108068675087 1012239687087 es01090675e86 _9911220768082 1.3 Write a method called readFromFile that will receive a pointer to the address of the first element of the arrIDs array. Read a number of idnumbers from a text file called 1 idnumbers.txt into the array. Display a message indicating that data is being read from the file. Return the number of elements saved in the arrIDs array. о. 1 Example: Reading from file... 1.3 Write a function called displayIDnumbers that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Display the list of IDnumbers. Example: List of IDnumbers 7803045678087 _8904050876092 _9002017896054 9408072345087 8703083456098 _7812120867887 0108068675087 _1012239687087 _0801090675e86 _99112207680e82 1.4 Write a function called displayYearsBorn that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Write code to display the year that each person was born. NOTE: No. 2 • No square brackets are allowed to be Used in the solution

Topics: Files, Pointers, Functions and Arrays Task 1 Create a C++ project called PntIDNumbers. 1.1 Declare an array called arrIDs that will be able to hold 200 elements. Declare a pointer for the array. 1.2 Open Notepad and create a text file called idnumbers.txt. Make sure that the text file is saved in the same folder as the project. O idnumbers - Notepad File Edit Format View Help 7803045678087 8904050876092 9002017896054 _9408072345087 8703083456098 7812120867087 0108068675087 1012239687087 es01090675e86 _9911220768082 1.3 Write a method called readFromFile that will receive a pointer to the address of the first element of the arrIDs array. Read a number of idnumbers from a text file called 1 idnumbers.txt into the array. Display a message indicating that data is being read from the file. Return the number of elements saved in the arrIDs array. о. 1 Example: Reading from file... 1.3 Write a function called displayIDnumbers that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Display the list of IDnumbers. Example: List of IDnumbers 7803045678087 _8904050876092 _9002017896054 9408072345087 8703083456098 _7812120867887 0108068675087 _1012239687087 _0801090675e86 _99112207680e82 1.4 Write a function called displayYearsBorn that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Write code to display the year that each person was born. NOTE: No. 2 • No square brackets are allowed to be Used in the solution

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Topics: Files, Pointers, Functions and Arrays Task 1 Create a C++ project called PntIDNumbers. 1.1 Declare an array called arrIDs that will be able to hold 200 elements. Declare a pointer for the array. 1.2 Open Notepad and create a text file called idnumbers.txt. Make sure that the text file is saved in the same folder as the project. O idnumbers - Notepad File Edit Format View Help 7803045678087 8904050876092 9002017896054 9408072345087 8703083456e98 7812120867087 _0108068675087 _1012239687087 0801090675086 _9911220768082 1.3 Write a method called readFromFile that will receive a pointer to the address of the first element of the arrIDs array. Read a number of idnumbers from a text file called idnumbers.txt into the array. Display a message indicating that data is being read from the file. Return the number of elements saved in the arrIDs array. Example: No. 1 Reading from file... 1.3 Write a function called displayIDnumbers that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Display the list of IDnumbers. Example: List of IDnumbers 7803045678087 8904050876092 9002017896054 9408072345087 8703083456098 _7812120867087 _0108068675087 1012239687087 _0801090675086 99112207680e82 1.4 Write a function called displayYearsBorn that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Write code to display the year that each person was born. NOTE: No. 2 • No square brackets are allowed to be used in the solution.
Transcribed Image Text:Topics: Files, Pointers, Functions and Arrays Task 1 Create a C++ project called PntIDNumbers. 1.1 Declare an array called arrIDs that will be able to hold 200 elements. Declare a pointer for the array. 1.2 Open Notepad and create a text file called idnumbers.txt. Make sure that the text file is saved in the same folder as the project. O idnumbers - Notepad File Edit Format View Help 7803045678087 8904050876092 9002017896054 9408072345087 8703083456e98 7812120867087 _0108068675087 _1012239687087 0801090675086 _9911220768082 1.3 Write a method called readFromFile that will receive a pointer to the address of the first element of the arrIDs array. Read a number of idnumbers from a text file called idnumbers.txt into the array. Display a message indicating that data is being read from the file. Return the number of elements saved in the arrIDs array. Example: No. 1 Reading from file... 1.3 Write a function called displayIDnumbers that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Display the list of IDnumbers. Example: List of IDnumbers 7803045678087 8904050876092 9002017896054 9408072345087 8703083456098 _7812120867087 _0108068675087 1012239687087 _0801090675086 99112207680e82 1.4 Write a function called displayYearsBorn that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Write code to display the year that each person was born. NOTE: No. 2 • No square brackets are allowed to be used in the solution.
NOTE: • No square brackets are allowed to be used in the solution. • No prewritten functions are allowed to be used in the solution. Example of output: 3/6 List of years born Year born: 1978 Year born: 1989 Year born: 1990 Year born: 1994 Year born: 1987 Year born: 1978 Year born: 2001 Year born: 2010 Year born: 2008 No. 3 Year born: 1999 How to convert a single character in a string into an integer: You can utlize the fact that the character encodings for digits are all in order trom 48 (for 0) to 57 (lor ). This holds Yue for ASCII, UTF-x and practically all other encodings (see comments below for more on this) Therefore the integer value for any digt is the digt minus O (or 48) char 'i int e's Iis nw equel to 1, not 1 is synonymous to char e int I-- 48 1 is now equal to 1, not '1 ASCII table AS Ch ASai Ch ASa Ch ASCI Char A Car AseI Char caChar ASOI Char Chur Chur ASOI OMUL 15 DIE 32 SP 64 e tes SP 48 49 1. SOH 17 33 97 113 2 R 2 STA 18 3 4 34 50 66 134 35 51 67 ETX TEOT 20 DC4 35 S D M EMO 21 NAK 2 19 DC3 115 68 D 100 37 53 101 117 ACE 22 SENa SYN 38 REL 23 TR 4 ETB 54 6 20 86 102 2 138 23 33 55 71 103 129 24 CAN 40 56 72 104 120 HT 25 EM 41 57 73 105 121 10 v 24 SUB 42 25 27 74 106 122 ESC 41 75 107 k 123 12 lu u FS 21 44 134 1a a 6s 29 77 CR GS 45- 109 125 14 Tenam Is so 46 94 110 us te 47 tuu la 27 DEL 111 127 15 31 79 95 | Hint: for (int k- 0 k< *pCounter: k++) if ((* (PIDS + k) )) digitl = (* (PIDS + k + 1) -'0')* 10 digit2 = (* (pIDs + k + 2) -'0'): year- digiti + digit2; 1.5 Write a function called displayMonthsBorn that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Write code to display the months that each person was born. NOTE: • No square brackets are allowed to be used in the solution. • No prewritten functions are allowed to be used in the solution. Example of output: List of months born Month born: 3 Month born: 4 Month born: 2 Month born: 8 Month born: 3 Month born: 12 Month born: 8 Month born: 12 Month born: 1 Month born: 11 No. 4
Transcribed Image Text:NOTE: • No square brackets are allowed to be used in the solution. • No prewritten functions are allowed to be used in the solution. Example of output: 3/6 List of years born Year born: 1978 Year born: 1989 Year born: 1990 Year born: 1994 Year born: 1987 Year born: 1978 Year born: 2001 Year born: 2010 Year born: 2008 No. 3 Year born: 1999 How to convert a single character in a string into an integer: You can utlize the fact that the character encodings for digits are all in order trom 48 (for 0) to 57 (lor ). This holds Yue for ASCII, UTF-x and practically all other encodings (see comments below for more on this) Therefore the integer value for any digt is the digt minus O (or 48) char 'i int e's Iis nw equel to 1, not 1 is synonymous to char e int I-- 48 1 is now equal to 1, not '1 ASCII table AS Ch ASai Ch ASa Ch ASCI Char A Car AseI Char caChar ASOI Char Chur Chur ASOI OMUL 15 DIE 32 SP 64 e tes SP 48 49 1. SOH 17 33 97 113 2 R 2 STA 18 3 4 34 50 66 134 35 51 67 ETX TEOT 20 DC4 35 S D M EMO 21 NAK 2 19 DC3 115 68 D 100 37 53 101 117 ACE 22 SENa SYN 38 REL 23 TR 4 ETB 54 6 20 86 102 2 138 23 33 55 71 103 129 24 CAN 40 56 72 104 120 HT 25 EM 41 57 73 105 121 10 v 24 SUB 42 25 27 74 106 122 ESC 41 75 107 k 123 12 lu u FS 21 44 134 1a a 6s 29 77 CR GS 45- 109 125 14 Tenam Is so 46 94 110 us te 47 tuu la 27 DEL 111 127 15 31 79 95 | Hint: for (int k- 0 k< *pCounter: k++) if ((* (PIDS + k) )) digitl = (* (PIDS + k + 1) -'0')* 10 digit2 = (* (pIDs + k + 2) -'0'): year- digiti + digit2; 1.5 Write a function called displayMonthsBorn that will receive the pointer of the first element of the arrIDs array and the number of elements in the array. Write code to display the months that each person was born. NOTE: • No square brackets are allowed to be used in the solution. • No prewritten functions are allowed to be used in the solution. Example of output: List of months born Month born: 3 Month born: 4 Month born: 2 Month born: 8 Month born: 3 Month born: 12 Month born: 8 Month born: 12 Month born: 1 Month born: 11 No. 4
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