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How do you sort a list of strings alphabetically using a two-dimensional character array?
Firstly you must determine the longest string in the list and allocate an array to accommodate it. This may incur a lot of wasted memory, especially if you have a particularly long string amongst hundreds or thousands of very short strings. A more efficient method would be to create a one-dimensional array of pointers to null-terminated strings. This has the advantage that you do not need to copy or move the strings, only the pointers need be sorted, and the strings can reside anywhere in memory -- they needn't be in contiguous memory as they would in a two-dimensional character array.
Regardless, once you've got your array, there are many different algorithms you can employ to sort it. Some are better than others. For short lists up to perhaps 20 items, a Bubble Sort is ideal and is by far the simplest to implement. For larger lists, you should consider more efficient sorting algorithms, such as Quick Sort and Merge Sort. See the related link below for a comprehensive list and table of comparisons. You will also find example code and full explanations on each algorithm, including pros and cons of each.
What else can I help you with?
What character terminates all character array strings?
the character string is terminated by '\0'
Write javascript code to display a list of strings?
You need to put the strings in an array, and then loop through the array to output the strings. Something like this would be a simple example: ---------------- var strings = ["s1","s2","s3"]; for ( var i in strings ) { document.write( strings[i] ); }
Where string arrays belong in a C program?
There is no data type string in C. String is handled as an array of characters. To identify the end of the string, a null character is put. This is called a null terminated character array. So array of strings will be a double dimensioned array of chars. It is implemented as an array of pointers, each pointer pointing to an array of chars.
What is mean by Extra key inserted at the end of Array?
It means the array has a sentinel to mark the end of the array. Any elements that follow the sentinel element are deemed invalid. Sentinels are usually denoted with a special value that is not used by any of the elements that precede it. Null-terminated strings are an example, where the NULL character (ASCII code 0) marks the end of a character array.
How do you convert a string into a character array?
A string is, by definition, a character array. No conversion is required.
What character terminates all character array strings?
the character string is terminated by '\0'
How strings and characters are represented in an array?
An array of characters is an array of character codes (such as ASCII codes). A string is typically a null-terminated array of characters however some languages use the first array element to specify the string's length.
What is array of string?
An array of strings is usually implemented as an array of character pointers. Each pointer refers to a a null-terminated character array, and can be treated just as if it were a two-dimensional array where the length of each "row" is not fixed length (the null terminator marks the end of each row). The array of character pointers must be allocated in contiguous memory (as must all one-dimensional arrays), however the character arrays they point to need not be allocated contiguously with each other (only the individual one-dimensional character arrays must be contiguous).
Write javascript code to display a list of strings?
You need to put the strings in an array, and then loop through the array to output the strings. Something like this would be a simple example: ---------------- var strings = ["s1","s2","s3"]; for ( var i in strings ) { document.write( strings[i] ); }
What is the difference between Strings and Arrays in c?
There is no difference. A string is just an array of type char. The only real difference is that we do not need to keep track of the length of a string because strings are null-terminated in C. If a string does not have a null-terminator, then it is just an ordinary array of character values.
Where string arrays belong in a C program?
There is no data type string in C. String is handled as an array of characters. To identify the end of the string, a null character is put. This is called a null terminated character array. So array of strings will be a double dimensioned array of chars. It is implemented as an array of pointers, each pointer pointing to an array of chars.
What String of what?
An array of strings is usually implemented as an array of character pointers. Each pointer refers to a a null-terminated character array, and can be treated just as if it were a two-dimensional array where the length of each "row" is not fixed length (the null terminator marks the end of each row). The array of character pointers must be allocated in contiguous memory (as must all one-dimensional arrays), however the character arrays they point to need not be allocated contiguously with each other (only the individual one-dimensional character arrays must be contiguous).
What is mean by Extra key inserted at the end of Array?
It means the array has a sentinel to mark the end of the array. Any elements that follow the sentinel element are deemed invalid. Sentinels are usually denoted with a special value that is not used by any of the elements that precede it. Null-terminated strings are an example, where the NULL character (ASCII code 0) marks the end of a character array.
What is the array of string in c?
A string in C is stored in a 1 dimension array so an array of strings is simply a two dimension array.
What is the difference between numeric array and associative array?
Numeric array has numbers(+integers) that represent the values Associative array has strings that represent the values
Why is c string defined as an array?
Every programming language treats strings as arrays. A C string is defined as being a null-terminated array of characters. A C string that does not have a null-terminator is just an array of character values, but without a null-terminator the onus is upon the programmer to keep track of the array's length.
How do you convert a string into a character array?
A string is, by definition, a character array. No conversion is required.
