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ENTRY - CONTROLLED LOOP EXAMPLE

Consider the following code fragment:

:

for(int a=1;a<=10;a++)

{

cout<<"\t"<

}

:

The code will print first 10 natural nos. as:

1 2 3 4 5 6 7 8 9 10

In the above example, first the value of a is determined, which is 1 initially; then the test expression is evaluated (which, in this example comes out to be true (1>10)); the body of the loop is then executed followed by the execution of update expression (here, a++).

This is an entry controlled loop because the body of the loop is executed only after the test expression evaluates to true.

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What is the difference between entry and exit controlled loops - in Java?

while loop and for loop are entry controlled loops as they check looping condition at the entry point. do while loop is exit controlled loop as it checks looping condition at exit point. shreeradha@yahoo.com


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The only loop that does not require an entry condition is the procedural goto loop: again: /*...*/ goto again; Although a do-while loop has no entry condition per-se, it still requires a mandatory entry condition into the second and all subsequent iterations. do { /*...*/} while (true); // mandatory entry condition into all but the 1st iteration And although a for loop's condition is optional, it is implicit: for (;;) {/*..*/} // implicit for ever loop for (;true;) {/*...*/} // explicit for ever loop


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a loop consist of data initialization;test condition;updation; example a for loop for(int a=1;a&lt;5;a++) the loop will be executed 5 times four positives result and the last test condition will be failed and the loop will be exited there are many loops some of them are while loop,do...while loop,for loop,maybe more...... do while is an exit check loop and while and for are entry check loop.


Use the control variable during the execution of the loop?

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What is the difference between entry and exit controlled loops - in Java?

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