A for loop typically runs a specific number of times in each iteration, as determined by the loop's initialization, condition, and increment/decrement statements.
The for loop would execute 10 times in the following code snippet.
The difference between open loop and closed loop injection moulding is to do with the type of control system used. An open loop system changes the input signal relative to the pre-defined perameters of the system. A closed loop system uses a feedback signal ie it takes information from a point in the process usually the end and sends it back to the start where the system adjusts the input accordingly. To fully understand this I would suggest getting a good book on control theory. I use 'Modern Control Engineering' by Katsuhiko Ogata. Many people also use Richard Dorf but I find Ogata easier to follow. AuthorOgata, Katsuhiko.TitleModern control engineering / Katsuhiko Ogata.
The bit flipped three times during the data transmission process.
4 times
8 goes into 32 4 times.
The for loop is especially useful for flow control when you already know how many times you need to execute the statements in the loop's block. The for loop declaration has three main parts, besides the body of the loop: • Declaration and initialization of variables • The boolean expression (conditional test) • The iteration expression The three for declaration parts are separated by semicolons. The following two examples demonstrate the for loop. The first example shows the parts of a for loop in a pseudocode form, and the second shows a typical example of a for loop. for (/*Initialization*/ ; /*Condition*/ ; /* Iteration */) { /* loop body */ } Ex: for (int i = 0; i<10; i++) { System.out.println("i is " + i); }
The for loop is especially useful for flow control when you already know how many times you need to execute the statements in the loop's block. The for loop declaration has three main parts, besides the body of the loop: • Declaration and initialization of variables • The boolean expression (conditional test) • The iteration expression The three for declaration parts are separated by semicolons. The following two examples demonstrate the for loop. The first example shows the parts of a for loop in a pseudocode form, and the second shows a typical example of a for loop. for (/*Initialization*/ ; /*Condition*/ ; /* Iteration */) { /* loop body */ } Ex: for (int i = 0; i<10; i++) { System.out.println("i is " + i); }
The for loop is used when you want to do a procedure, a certain amount of times. The for loop is used when you already know how many times the loop will be repeated. for example... you want to scan an array. you can do something like this. for(i=0;i<myArray.length;i++){ if(myArray[i] == 5){ alert("This array position contains the number five."); } } the code above is javascript. But the idea is the same in any language. This is one use, but as I said. You use it when you already know the amount of times the loop will be repeated.
one or more
4
The for loop would execute 10 times in the following code snippet.
Iteration is the continuous repetitition of an operation or procedure. Though it has application in mathematics, the term is heavily used in computer programming where it is a technique for repeating an instruction as a means of getting an answer, e.g., if you want to know how many 7s there are in 50, then keep subtracting seven from fifty until there isn't enough left. That's iteration. It is also associated with loops. Programming languages have various types of loop commands to perform iteration. An example of the mathematical application is in the wonderfully simple and elegant area of fractals.
Iteration is the continuous repetitition of an operation or procedure. Though it has application in mathematics, the term is heavily used in computer programming where it is a technique for repeating an instruction as a means of getting an answer, e.g., if you want to know how many 7s there are in 50, then keep subtracting seven from fifty until there isn't enough left. That's iteration. It is also associated with loops. Programming languages have various types of loop commands to perform iteration. An example of the mathematical application is in the wonderfully simple and elegant area of fractals.
6 times. When x is 7, the loop ends.
Features wise they are both the same. The difference lies in the way they are implemented.while LoopThe while loop is good for scenarios where you don't know how many times a block or statement should repeat, but you want to continue looping as long as some condition is true. A while statement looks like this:while (expression) {// do stuff}In this case, as in all loops, the expression (test) must evaluate to a boolean result. The body of the while loop will only execute if the expression (sometimes called the "condition") results in a value of true. Once inside the loop, the loop body will repeat until the condition is no longer met because it evaluates to false.Any variables used in the expression of a while loop must be declared before the expression is evaluated. In other words, you can't saywhile (int x = 2) { } // This is not legalThe key point to remember about a while loop is that it might not run at all. If the test expression is false the first time the while expression is checked, the loop body will be skipped and the program will begin executing at the first statement after the while loop. Look at the following example:int x = 8;while (x > 8) {System.out.println("in the loop");x = 10;}System.out.println("past the loop");Running this code producespast the loopBecause the expression (x > 8) evaluates to false, none of the code within the while loop ever executesThe for loop is especially useful for flow control when you already know how many times you need to execute the statements in the loop's block. The for loop declaration has three main parts, besides the body of the loop:• Declaration and initialization of variables• The boolean expression (conditional test)• The iteration expressionThe three for declaration parts are separated by semicolons. The following two examples demonstrate the for loop. The first example shows the parts of a for loop in a pseudocode form, and the second shows a typical example of a for loop.for (/*Initialization*/ ; /*Condition*/ ; /* Iteration */) {/* loop body */}Ex:for (int i = 0; i
Counting the whole square as iteration 0, there are 46 = 4096 segments after iteration 6.
The golden rule in iteration: everything done with a for loop can be done with a while loop, BUT not all while loops can be implemented with a for loop. for-loops are just a short-cut way for writing a while loop, while an initialization statement, control statement (when to stop), and a iteration statement (what to do with the controlling factor after each iteration). = Examples of for-loops = The most basic use for using for-loops is to do something a set number of times: for(int k = 0; k < 10; k++); // this loops runs for 10 times another less common use of the for-loop is traversing raw listNodes, since it does contain an initialization(finding the first node), control (as long as there is a next node), and a iteration statement (get my next node). i.e.: for(ListNode temp = startingNode; temp != null; temp = temp.getNext); // this traverses the entire ListNode list and stops when it has exhausted the list = How to implement for-loops using while loop = Basically for loops are just short hand for while loops, any for loop can be converted from: for([initialize]; [control statement]; [iteration]); to [initialize]; while([control statement]) { //Do something [iteration]; } These two does the exact same thing. = For When Only while Loop can be used = while-loops are used when the exiting condition has nothing to do with the number of loops or a controll variable, maybe you just want to keep prompting the user for an input until the given input is valid, like the following example which demands a positive number: int x = [grab input]; while(x < 0) { // Do code x = [grab input]; } It is true that, when used as intended, a for loop cannot do everything a while loop can, however, in reality, for loops are just as versatile. For example, the above while loop can easily be rewritten to be a for loop as so: for(int x = [grab input]; x < 0; x = [grab input]){ // Do Code } The above for loop behaves exactly like the while loop in the previous heading. A better example of a while loop that should not be a for loop might be: while(true){ // Do some processing // Check some condition. If condition is met, break out of loop. // Do some more processing. } Here, the checking of the condition comes in the middle of the processing for the while loop, whereas the condition checked in a for loop is always done at the beginning of the loop. Also, the "iteration" statement is non-existant and is a factor of processing done somewhere else in the while loop. Finally, there was no initialization for this while loop. However, this while loop can still be written as a for loop: for(;true;){ // Do some processing // Check some condition. If condition is met, break out of loop. // Do some more processing. } As you can see, a for loop is exactly like a while loop if you leave out the initialization and iteration sections (you still needs the semicolons, to signify those parts of the for loop are still there, they just do nothing). However, it is clear that when you do not need the extra portions of the for loop, why not just use a while loop? The basic for loop was extended in Java 5 to make iterating over arrays and other collections more convenient. See this website for further explanation: (http://www.leepoint.net/notes-java/flow/loops/foreach.html)