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14 lis 2023 · Instrukcja while wykonuje instrukcję lub blok instrukcji, podczas gdy określone wyrażenie logiczne oblicza wartość true. Ponieważ to wyrażenie jest oceniane przed każdym wykonaniem pętli, pętla while wykonuje zero lub więcej razy.
The do while loop is the same as while loop except that it executes the code block at least once. Syntax: do. {. //code block. } while(condition); The do-while loop starts with the do keyword followed by a code block and a boolean expression with the while keyword.
The do statement executes a statement or a block of statements while a specified Boolean expression evaluates to true. Because that expression is evaluated after each execution of the loop, a do loop executes one or more times.
29 mar 2010 · Do..while is the way to go when you want to run some code, check or verify something (normally depending on what happened during the execution of that code), and if you don't like the result, start over again.
Syntax. do { // code block to be executed} while (condition); The example below uses a do/while loop. The loop will always be executed at least once, even if the condition is false, because the code block is executed before the condition is tested:
The syntax for do...while loop is: do { // body of do while loop } while (test-expression); How do...while loop works? The body of do...while loop is executed at first. Then the test-expression is evaluated. If the test-expression is true, the body of loop is executed. When the test-expression is false, do...while loop terminates. do...while ...
To make a do-while loop we use the do keyword. Then we write a block of code between { and } that should execute repeatedly. After that we use the while keyword to check a Boolean condition.
