[rhymin]

How do you go about converting this code from for loop to while loop?

Here is a simple example of for loop:

class ArithmeticProgression
{
public static void main (String[] args)
{
int sum = 0;

for (int i = 1; i <= 1000; i++)
{
sum = sum + i;
System.out.println(Integer.toString(sum));
}
}
}

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How do you go about converting this code from for loop to while loop?

Hey again rhymin,

A while loop is basically a loop that continues to loop because a certain condition proves to be true. Syntax: while (<condition>) {} So until the condition is proven to be not true, the loop will continue to execute over and over again. Remember when using a while loop the condition is checked before the code body is executed (In other words, do not confuse it with the "Do...While" loop)

A nice way of thinking of the for loop, is actually a while loop that contains a counter that gets incremented each time the loop executes. With this in mind the code for the corresponding for and while loops would look something like this:

FOR LOOP

for(int i = 0; i < 10; i++) {
// Code Body
}

WHILE LOOP

int i = 0;
while(i < 10) {
i++;
// Code Body
}

So in your case converting that for loop to a while loop wouldn't require an extra counter as your sum variable could be considered a closing condition. Here is the code for a while loop for your for loop:

int sum = 0;
int i = 1;

while(i <= 1000) {
sum = sum + i;
i++;
 System.out.println(Integer.toString(sum));
}

I hope that's what you were looking for and you have a better understanding of the two loops. Let us know if you require anything else

Peace Out

[Spike]

How do you go about converting this code from for loop to while loop?

Hey again rhymin,

A while loop is basically a loop that continues to loop because a certain condition proves to be true. Syntax: while (<condition>) {} So until the condition is proven to be not true, the loop will continue to execute over and over again. Remember when using a while loop the condition is checked before the code body is executed (In other words, do not confuse it with the "Do...While" loop)

A nice way of thinking of the for loop, is actually a while loop that contains a counter that gets incremented each time the loop executes. With this in mind the code for the corresponding for and while loops would look something like this:

FOR LOOP

for(int i = 0; i < 10; i++) {
// Code Body
}

WHILE LOOP

int i = 0;
while(i < 10) {
i++;
// Code Body
}

So in your case converting that for loop to a while loop wouldn't require an extra counter as your sum variable could be considered a closing condition. Here is the code for a while loop for your for loop:

int sum = 0;
int i = 1;

while(i <= 1000) {
sum = sum + i;
i++;
 System.out.println(Integer.toString(sum));
}

I hope that's what you were looking for and you have a better understanding of the two loops. Let us know if you require anything else

Peace Out

[rhymin]

Spike hacker, thank you very much for the quick reply and taking the time again (p.s. love the profile pic ).

That helps me understand loops better for sure. If I have another question about this with more difficult code, I will reply to this thread.

Thanks again!