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what is difference between array of characters and string
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Answer / vedavathi
when we declare array of character it has 2 be teminated by
null,but termination by null in case of string is automatic.
| Is This Answer Correct ? | 93 Yes | 23 No |
Answer / kapil kumar verma iimt meerut
when we declare array of char it has to be terminated by
null but termination by null in case of string is
automatic.the compiler automatically puts a null char when
we insert a string for example "kapil" for the
string "kapil\0", but for a char array we need assign a
place for it for example a[6] contains five char & a null
char.& secondly
when char array is read through scanf() input function then
spaces are not allowed if characters is read as string
(through gets() function) spaces are allowedand are treated
as a single char.
| Is This Answer Correct ? | 38 Yes | 4 No |
Answer / zubair
String is much same as character array, it can also be
checked by each characters:
string str;for(int i=0;str[i]!='\0';i++) cout <<str[i]<<endl;
1. The NULL terminator is loaded automatically in string.('\0')
2.Both of them drop the data after space when we take input.
| Is This Answer Correct ? | 35 Yes | 4 No |
Answer / vijay
we can store set of names in string.but can only store set
of characters in array
| Is This Answer Correct ? | 77 Yes | 55 No |
Answer / saumil
the compiler automatically puts a null character when we
insert a string...for eg "abc" for the compiler is "abc\0".
but for a array of characters we need to assign a place for
it..for eg a[15] contains 14 characters and a null
character('\0').
| Is This Answer Correct ? | 24 Yes | 7 No |
Answer / punit shukla,hbti-kanpur
1.major difference is: string will have static storage
duration, whereas as a character array will not, unless it
is explicity specified by using the static keyword.
2.Two strings of same value[1] may share same memory area
bt not in the case of char arrays
| Is This Answer Correct ? | 11 Yes | 3 No |
Answer / guest
in char array space are not allowed means part after space
not consider but in string it is allowed
| Is This Answer Correct ? | 31 Yes | 26 No |
Answer / nag
Character array consist of group of characters, and static one
char a[10] means 9 are for using purpose and one is null
In case of string null is taken as default and is taken into
double quotes
String s="string";
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / shayan
the main difference between array of char and string is that when we declare array of char like char name[6],in this case for example shayan s is stored in 0 index and last character is n which is at 5 index but i delared 6 because 6th index is of null character which is neccesary to declare but in string it will automatically declare by the compiler like "shayan" after n compiler automatically put \0 after n.
| Is This Answer Correct ? | 3 Yes | 1 No |
Is this program statement valid? INT = 10.50;
print the following using nested for loop. 5 4 3 2 1 1 2 3 4 3 2 1 1 2 1 2 1 1 2 3 4 3 2 1 1 2 3 4 5
Topics: Structures, Arrays, Searching and Sorting Assume there is a small mobile computer device including a hard disk and a slot for a memory card. The device shall be used to backup photos e.g. during holiday. Every time a memory card is connected all photos of the card are copied into a new folder automatically. And your task is to develop some basic controlling software to show, add, remove, search and sort the directories of photos. Step by Step Implementation 1.Define two symbolic constants, one to hold the total volume of the disk (e.g. VOLUME) and another one to hold the number of entries the files system of the device can handle (MAXFOLD). 2.Define a new structure data type named DATE to store a date consisting of year, month and day as unsigned values. 3.Define an other structure data type FOLDER to store the information of one folder of photos: ◦A title as character array of appropriate length ◦The location (event) the photos are taken as character array of appropriate length ◦The date of the day the photos are copied to the disk using the just defined data type DATE ◦The number of photos as natural number ◦And the size of the folder in MB as floating point value 4.Define the following global variables and initialise them: ◦disk as an array with MAXFOLD elements of data type FOLDER ◦folders as natural value to count the number of folders currently stored at the disk (valid elements in the array) TEST: Now you should be able to compile the code the first time without any warning or error. In the menu only "p" to print and "q" to quit will work!. 5.Now complete the functions given by their prototype: float freeSpace ();The function has to calculate the sum of the size component of all elements currently stored in the disk array. The function shall return the free space of the disk by the difference between the available total volume and the calculated sum. TEST: To test this function you only need to uncomment printing the "statusline" at the function actionmenu(). Compare the calculated value with a manual calculation of the example values given above. unsigned isBefore (DATE, DATE);The function checks if one date is before the other. There are 3 different possibilities which have to be handled. Imagine for example these 3 different combinations of values: ◦2010-01-01 : 2010-01-02 ◦2010-01-01 : 2010-02-01 ◦2010-01-01 : 2009-01-01 The function shall just return the result of the comparison. unsigned isEqual (DATE, DATE);The function checks if one date is equal to the other, all components have to be compared. The function shall just return the result of the comparison. int findByDate (DATE);As the array is should be kept in order (sorted by date) implement a binary search for a folder by its date here. You need only to adapt the binary search we used in the exercise. Use the 2 comparing functions above where appropriate. The function shall return the index of the element which was found or -1. TEST: Now you can try searching a folder by date via the "s" in the menu. Activate the corresponding part in the main function. int isSpaceLeft (FOLDER);This function compares the free space of the disk with the size of folder given with the parameter list. The function shall return 1 if there is enough space to add the folder, otherwise 0 (just the result of the comparison). void SortByDate ();This function shall implement the InsertionSort using the component date as key. Use the provided algorithm/souce code of the exercise as template. If you need a comparison between dates, use the function isBefore you have written again. void addFolder (FOLDER);The function has to check if the disk has additional capacities to add the new folder (number of folders and space left). If at least one of these conditions is false print an error message and return -1. Else there has to be added an other test to avoid 2 folder elements with the same date (use the findByDate function here. If there is no folder with the new date simply attach the new folder at the end of the array and call the sorting algorithm afterwards to keep the order in the array. TEST: Now you can try to add a folder via the "a" in the menu. Activate the corresponding part in the main function. void delDir (int);This function removes one element of the disk array. The input parameter contains the index of the element to delete. Deletion can simply be done by moving all elements at the right one to the left (overwriting the element to delete. The function may get a -1. This has to be checked first (certainly there is nothing to delete then!) Don't forget to decrement the counter of elements at the end. TEST: Now you can try to remove a folder by date via the "r" in the menu. Activate the corresponding part in the main function. unsigned findAllOfLocation(char[], FOLDER[]);This is an optional additional task: The function shall find all elements with the given value for the component location (first input parameter). The array elements which are found have to be added to the FOLDER array (second input parameter). As this parameter is an array we can use the result later in the main function. There kernel of function implements a modified linear search on the disk array (it does not stop if one element is found bat continues search until the location of all elements is checked). The finally function shall return the number of elements found in the disk array. TEST: Now you can try to add a folder by date via the "l" in the menu. Activate the corresponding part in the main function.
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