Thread: lucky numbers

hi everyone, i have to make a java program that generates "lucky numbers" with arrays
The finishing result should be this
1 2 3 4 5 6 7 8 9 10 original
1 3 5 7 9 remove every second number from the original
1 3 7 9 remove every 3 number from the above
1 3 7 remove every 4 number from above

So far i have the first two but i'm stuck on the other the lines

for( int j = 0 ; j < start.length; j +=2 ) {
 
				System.out.print( start[i] + " ");

this code is for the second line

if anyone has any ideas they would be much appreciated

i don't know how to remove something from an array, that the problem. And don't really see another approach

I am not certain if this is the best approach, but this is how I would go about it:

1: Assign a variable some extreme value that it it is very unlikely that the User will ever use.. such as Integer.MAX_VALUE, to be the unsaid value. Thiis will avoid having to make a copy of the array.

2: When 'removing' a value from the array, simply replace it's index with the previous variable.

3: When printing the array, first check if the value is the same as the variable assigned in step 1, if it is then do not print it.

i need to now how i can put the output from this code
for( int j = 0 ; j < start.length; j +=2 ) {

System.out.print( start[i] + " ");

into a new for loop.