problem with loop

[pietr0]

Hi!

Assume that I have 5 variables: a1,...,a5.

I wonder if it is possible to do a loop like that:

for(int i=1; i<=5; i++){

a[i] = "whatever";

}

I would like to change all my variables "a". Can you help me?

[Norm]

I would like to change all my variables "a"

You have an array named: a that can hold some values (don't know how many because you do not show the size of the array).

Where are the variables: a1,a2, etc How are those variables related to the array?
What do you mean by 'change all my variables "a"'?

[ozzyman]

Assume that I have 5 variables
...

for(int i=1; i<=5; i++){

a[i] = "whatever";

}

Array indexes start at 0 so your loop should also start at 0. Or you should use
array[i-1] = ...
to reference the array item.

And yes you can change all the values to A exactly how you've written it except changing Whatever to A.

[pietr0]

You have an array named: a that can hold some values (don't know how many because you do not show the size of the array).

Where are the variables: a1,a2, etc How are those variables related to the array?
What do you mean by 'change all my variables "a"'?

There is no array.
I just want to change values of those int variables (named: a1, ..., a5) at the same time.
I do not want to change their values individually. Perhaps in some place in my program I need to "reset" value of every variable (a5=10 and I need a5=0...).

I wonder if there is possibility to "reset" their values using a loop instead of write individually a1=0; a2=0; ... ; a5=0 (and in some extreme cases a10000=0;) ??
I'm just curious...

[Norm]

I just want to change values of those int variables (named: a1, ..., a5) at the same time.

This will change all those variables in one statement:
a0=a1=a2=a3=a4=a5=0;

[JosAH]

There is no array.
I just want to change values of those int variables (named: a1, ..., a5) at the same time.
I do not want to change their values individually. Perhaps in some place in my program I need to "reset" value of every variable (a5=10 and I need a5=0...).

I wonder if there is possibility to "reset" their values using a loop instead of write individually a1=0; a2=0; ... ; a5=0 (and in some extreme case a10000=0;) ??
I'm just curious...

It seems as if you are afraid of arrays; an array 'a' is like a block of houses with house numbers 0, 1, 2, 3 etc. so a[0] is a house, a[1] is a house, etc. and each house serves as a single variable. You can set each variable to, say, 42, like this:

for (int i= 0; i < a.length; i++)
   a[i]= 42;

You can't use a loop with individual variables a0, a1, a2 etc. in Java

kind regards,

Jos

[ozzyman]

Add the items to an array like this:

int[] a = new int[] { a1, a2, a3, a4, a5 };

So you'll be able to loop through the values with
a[i] = ...
where 0 <= i <= 4

[Norm]

@ozzyman
??? What is your code supposed to do?