Yes. Absolutely. In fact, the power of arrays becomes very obvious when you start to build looping constructs such as while, do, for, etc.
Set sum = 0, then add each of the elements of the array, one by one. Use a for loop to process each element of the array.Set sum = 0, then add each of the elements of the array, one by one. Use a for loop to process each element of the array.Set sum = 0, then add each of the elements of the array, one by one. Use a for loop to process each element of the array.Set sum = 0, then add each of the elements of the array, one by one. Use a for loop to process each element of the array.
foreach can simply replace for loop. for ex in perl, if you need to copy display an array, it will take only foreach $var(@arr). then print $var. no need of incrementing the index of array like for loop.
1.take while loop in which u continue up to null in array of string. 2.once u get null pointer then take a new array of same length. 3.when u get null there ll save position no in variable i. 4.take while loop i to 0; 5.and j=0 for new array. 6.in above loop copy old array to new array in each cycle of loop. 7.j++; 8.u ll get reverse of string.
You can use a for loop whenever you can use a while loop; it's the same.
Use a for-loop starting at the length of the array and go backwards and build up a new array with the values.
Yes. while loop consist of only condition statement to make for loop look as while loop we can use syntax shown below: for(;condition;) eg: for(;i<=n;)
There are three forms of loop commonly used in C/C++, the for loop, the while loop and the do-while loop. The for loop is most commonly used whenever an action is going to be performed a set amount of times. For example, to sum every element in an array: for(i = 0; i < arraySize; i++) { sum = sum + array[i]; } The while loop and do-while loop are commonly used to loop until a condition is met. The difference between the two is that the do-while loop goes through one iteration before checking its condition, while the while loop checks its condition before any execution of the loop. Example do-while loop: do { randomNumber = rand() % 10; }while(randomNumber != 6); Example while loop: cout > number; while(number < 0) { cout > number; }
We need a for loop because the while and do-while loops do not make use of a control variable. Although you can implement a counter inside a while or do-while loop, the use of a control variable is not as self-evident as it is in a for loop. Aside from the use of a control variable, a for loop is largely the same as a while loop. However, it is quite different to a do-while loop, which always executes at least one iteration of the loop before evaluating the conditional expression. In a for and while loop, the conditional expression is always evaluated before entering the loop, which may result in the loop not executing at all.
A nested loop is just one loop within another. The most common use of this is to read from or write into a multi-dimensional array. Example (in C-style pseudocode): int[][] array = some collection of data for( int i = 0; i < array.length; ++i ) { // loop through first dimension for( int j = 0; j < array[0].length; ++j ) { // loop through second dimensionprint array[i][j]} }
A for loop, and a while loop can do that. Some languages support a for each loop, which repeats a sequence of commands for each element in a collection (e.g., an array). You can also achieve repetition using recursion.
Because you have to repeat something. (Or you can use while-loop, too.)
foreach is a simple loop mostly used to read an array line by line; $arr = array("one", "two" , "three"); foreach($arr as $c) { echo $c; } it'll output : onetwothree also try looking up the while loop