are nested while loops bad?
431346
However, the way you nest the loops can have direct performance impacts on your code. So nesting loops is not necessarily bad, but it can definitely have noticeable effects on performance especially after some arbitrary number n loops.
1101890
It is not a bad practice, it just means that you did not think your code through. The condition is required to tell the loop when to finish looping. If you have a terminating point, then why not put it as a condition?
1395287
Yes, it is valid. The else is an optional part. During the program execution, the statements written inside the if block will only be executed when the condition mentioned is true. Otherwise, if the condition is false, the next consecutive lines after the if block will be executed.
720190
The do/while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.
1403387
Hi Sarone, Only object references can be null; bytes can be zero, though, as you obviously know, and that's what you meant. In your code snippet, the loop is completely unnecessary; when you allocate the array, all the elements are guaranteed to be zero already.
1321812
Which two statements are true about the while loop. The statement in a while loop will execute zero or more times. If the condition of a pre-test loop is false, the statements in the loop are never executed.
1104766
If condition is true execute if block otherwise execute else block. In the above program we use only one if else and it has only one condition. ... If else and nested if else are condition check statements. Nested if has two or more conditions in it.
753906
Contrast with the while loop, which tests the condition before the code within the block is executed, the do-while loop is an exit-condition loop. This means that the code must always be executed first and then the expression or test condition is evaluated. If it is true, the code executes the body of the loop again.
234792
The Java do-while loop is used to iterate a part of the program several times. If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use do-while loop. The Java do-while loop is executed at least once because condition is checked after loop body.
655753
Python doesn't have do-while loop. ... The do while loop is used to check condition after executing the statement. It is like while loop but it is executed at least once.
1192615
Java do while loop syntax is as follows: do { // statements } while (expression); The expression for the do-while loop must return a boolean value, otherwise, it will throw compile-time error.
89926
Generally, in Visual Basic the do-while loop is same as while loop but only the difference is while loop will execute the statements only when the defined condition returns true but the do-while loop will execute the statements at least once because first it will execute the block of statements and then it will checks ...
1399545
While loop is executed only when given condition is true. Whereas, do-while loop is executed for first time irrespective of the condition.
1362988
As for infinite loops for(;;) loop is better than while(1) since while evaluates every time the condition but again it depends on the compiler.
514100
The while loop tells the computer to do something as long as the condition is met. Its construct consists of a block of code and a condition. The condition is evaluated, and if the condition is true, the code within the block is executed. This repeats until the condition becomes false.
747042
Both do while and for loop does the same thing except for the one difference. The do while loops runs atleast once in any condition(even if the loops control condition is false) but the for loop runs only when the condition is true, as soon as the condition became false, the control goes out of the for loop.
531035
Python doesn't have do-while loop. But we can create a program like this. The do while loop is used to check condition after executing the statement. It is like while loop but it is executed at least once.