In Visual Basic the loop structure will allow you to run one or more lines of code repetitively. In the loop structure you have the ability to repeat statements until the condition is true‚ false‚ a specified number of times‚ or once for each element in a collection. In Visual Basic several problems require repetition capability‚ in which the sequence or calculation of instructions is repeated over and over using different sets of data. Some examples would include continual checking of user data
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The radius of the loop also changes as the graph progresses. This is exactly what we want in a roller coaster loop. We want the loop to start parallel to the straight track‚ and smoothly curve into a loop. We want the radius to slowly decrease over time until the radius at the top meets the radius of a circular loop. To create a Clothoid loop we can join the graphs of two Clothoids: Another way to get the desired shape of a roller coaster loop is by joining two identical circles
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structures can stop or exit an infinite loop? Sources found on: http://www.dummies.com/how-to/content/breaking-out-of-an-infinite-loop-in-your-c-languag.html & http://www.ehow.com/how_5697840_stop-infinite-loop.html Loops are programming devices that specify that a section of a program is to be performed one or more times. Typically they are divided into two categories‚ "for loops" and "while loops". A "for loop" is executed a set number of times. A "while loop" continues to execute until a predefined
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the body of a loop? You visually set them apart from the surrounding code. 2. Describe the difference between pretest loops and posttest loops? A pretest loop is a loop tests the condition before performing the iteration. A posttest loop performs the iteration‚ then tests the condition. 3. What is a condition-controlled loop? A condition-controlled loop uses a true/false condition to control the number of times it repeats. 4. What is a count-controlled loop? A count-controlled loop repeats a specific
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Next(recTab.Prior(recTab.Last))); 23 24 print(CHR(10) || `PL/SQL FOR LOOP’ || CHR(10)); 25 26 FOR bInt IN recTab.FIRST .. recTab.LAST LOOP 27 IF recTab.EXISTS(bInt) THEN 28 Print(bInt || ` ` || recTab(bInt).ename); 29 END IF; 30 END LOOP; 31 32 print(CHR(10) || `PL/SQL NEXT LOOP’ || CHR(10)); 33 34 bNew := recTab.FIRST; 35 Print( bNew || ` ` || recTab(bNew).ename ); 36 LOOP 37 bNew := recTab.NEXT(bNew); 38 Print( bNew
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used to represent Java’s equal to operator. 6. Java’s for loop is an example of a(n) counter-controlled loop. 7. When a while loop or a for loop is coded inside another while loop or for loop‚ the inner loop is called a(n) nested loop.. 8. A(n) sentinel is a special value that denotes the end of a list and is used to terminate loop processing when reading input values from a user‚ or a data file. 9. A(n) off-by-one error occurs when a loop is executed one too many‚ or one too few times due to an
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structures (also called loops). Loops contain a block of statements that can be executed repeatedly. We will discuss different types of loops and more advanced loop applications. The discussion of loops continues in Chapter 5. ISBN 1-256-14455-X After reading this chapter‚ you will be able to do the following: Distinguish between pre-test and post-test loops [Section 4.1] Identify infinite loops and loops that never get executed [Section 4.1] Create a flowchart using the loop structure [Section 4
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introduction loop structure loop is know as a group of instruction be executed repeatedly‚ until a logical condition has been satisfied. looping statements are used to control program flow. There are three major loop statements in the C programming language. 3 major loop : * for loop * while loop * do…while loop For loop. For loop is the fundamental looping statement in C. It is often used for situations in which you want to execute a specific task number of times. While loop In the
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statement in the body of a loop? By indenting the statements‚ you make them stand out from the surrounding code. This helps you to identify at a glance the statements that are conditionally executed by a loop. 2. Described the difference between pretest loop and posttest loops. A pretest loop tests its condition before each iteration. A posttest loop tests its condition after each iteration. A posttest loop will always execute at least once. 3. What is a condition-controlled loop? Because they are only
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Short Answer 6. What is an infinite loop? Write the code for an infinite loop. Infinite loops usually occur when the programmer forgets to write code inside the loop that makes the test condition false. In most circumstances you should avoid writing infinite loops. Declare String keepGoing = " y" keepGoing == " y" 7. A For loop looks like what other loop in a flowchart? A For loop looks like a counting- controll loop in a flowchart. 8. Why is it critical that accumulator variables are properly
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