Need help -> Convert do-while loop to while loop

Question

——
LLnode helpPtr=myList.getHead();

do {
if (helpPtr.getNext()!= null) {
helpPtr=helpPtr.getNext();

}
else{
helpPtr.setNext(myList.getHead());
}

}

while (helpPtr.getNext()!=myList.getHead());

📍this how I convert the do while to while loop. It is correct??
——
LLnode helpPtr=myList.getHead();

while (helpPtr.getNext()!= null){

helpPtr=helpPtr.getNext();

}

helpPtr.setNext(myList.getHead());

Answer 1

Seems like helpPtr.getNext() returns the next value , so it seems there is an error in your program . Using helpPtr.getNext() inside the loop condition check will advance the next call to same function to the next value .
So you have to store that return value in a variable to check condition instead of calling the next function again and again . Since , it will advance to next element in every call .

Sry If it's not the relevant answer .