While and For Loops Comments
Comments
-
I typed in the exact code as the answer and still get a compile error
-
@Billy, looking at your submission, I see the boilerplate code has been changed, which causes a compile error. Reset the code and try again. You only need to put code where it says
//your code here. -
how do i remove the cheat mark my submission was the exact answer :/
-
@Jason, sorry there's no way (currently) to remove the cheat once the cheat button has been clicked.
-
yes this course is very good idea but is should be motivated by java tutorials like beginner ,intermediate,advanced
-
hey im sorry but im still stuck in this on challenge everything looks perfect but i'm still getting errors please help..
-
@Jason, you want to increase the iterator each time. For example, to print the numbers from 1 through 10, you could create a loop like this:
for(int i=1; i<= 10; i=i+1){ printNum(i); }You need to do that to go from a to b instead.
-
I love the random quotes ♥
-
why is mine not working!!!
-
@Robert, make sure to declare any variable you use, even if it's just used as a loop index.
-
examples are simple and question are vary hard to understand
-
I like this
-
I do understand the While Loop and the example about wanting to repeat something 10 times, but I have a question ( quite stupid really but I just wanna make sure even though I know what is correct xD )
So If we have
{ int index = 1;
while(index <= 10){
doSmth();
index = index + 1
}
}
so now after executing this program the index will at sometime be 2 3 4 5 6 7 8 9 and in the end 10.
Does this mean that after every time the code is executed the { int index = 1 } changes to 2 3 4 5 6 7 8 9 or 10 from the "index = index + 1" ?
I know it does but does that appear in the "int index = ?" -
@Adhurim, "int index=1" is outside the while loop, so it is executed only 1 time.
-
I really was tempted to click the hint for this one but I sat there and thought about the ways to make it work. I still have trouble with the for loop but by just setting int i = a would have been so simple. Oh well I'm glad I got it to work with the while loop but I should avoid it because of the possibility of errors.
-
I did that and although it is correct but I should think of simpler way as the model answer :D :
public static void doStuff(int a, int b){
int tmp = a;
for (int i = 0 ; i< b-a+1;i++)
{printNum(tmp); tmp= tmp+1; } } -
Yeah this one is tough. There should be an explanation of how to include multiple indexes in the first part of the for condition. Do you just use the & and also there is no explanation on how to printout inclusive information i.e. 1-5
-
Are we supposed to solve with the while loop or the "for" loop?
-
it says error:for(int i=a;i<=b;i+1){
not a statement ^ -
it says error:for(int i=a;i<=b;i+1){
not a statement ^ -
you have to put: i = i+1; or you can do an abreviation, like i++;
-
This is a great course. I am more comfortable with Java now, and it has only been 30 minutes.
-
int kq=0; for(int i=0;kq<b;i=i+1){ kq=a+i; printNum(kq); } -
-
yeah i have the same thing but different variables ( i used n) and it's not working.
-
while (a <= b) {
printNum(a++);
} -
import java.util.Scanner;
public class Main {
public static void main(String[] args){Scanner input = new Scanner (System.in); System.out.print("Enter 1st number: ");int num1=input.nextInt(); System.out.print("Enter 2nd number: "); int num2=input.nextInt(); for (int i=num1; i<=num2; i++){ System.out.print(i + " "); } }}
-
for the for loop challenge:
for (int i=a; i<=b;i++) {
printNum (i);
}this basically assigns i as being a for the first time since a is less than b; the condition is to display including
b, so i must be less or equal than b and then increment it. the body of the for loop prints i by calling the printNum method.
-
for (int i = a; i <= b; i++){
System.out.println(i);
} -
just replace all the code with:
import java.util.Scanner;
public class Main {public static void doStuff(int a, int b){long x= a;
while(x<b+1){
System.out.print(x+" ");
x = x + 1;
}} public static void printNum(long x){ } //boilerplate code public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); for(int i=0; i<n; i++){ int a = in.nextInt(); int b= in.nextInt(); doStuff(a, b); System.out.println(""); } }}
-
Can I use While loop for the problem code above?
-
The only issue I had was thinking that he wanted actual numbers, then I realized that this is a module that gets called rather than core code. Oops.
-
i did the right code but the part that was already done further in the code was wrong. help me?
public static void printNum(int x){
system.out.print (x+"");
}
it says illegal start of expression. -
I think you need to be careful not to add extra curly braces or remove existing ones.
-
i did. i even reset the page and re wrote the code
-
i am confusion
-
I like this site :DD
-
huthtiuhithruhriurutrrihrwuerwuuherwhuewuhrwwwhutwhuwtwthuwuhwwetuewhewherihuerwihuweiuhwetuhiuhweiuhweuheuhweuhweuweiuuhiguwuuwgewuewgugewuwgueugwuhewuhwfuhuewuwguhhuueguwuhgwgwuegueghuegwupoohuguhgrughurwuhghuruhrwurhwhrhowhguhwoprugruowhwiphrwuogugrwurhrguwgwghughurwhuuorwhuhuwhgurgwugugrwuuwuphrwpuruhuwrhugrhgwhugrghughgurh7guhe7rguyher7h7uteiyhtyeu5yitgyhrueyhuheuighiuerhgiurhu
john marino
Nov 27, 2:44 PMthis is crazy hard to me..