Array problems

[walsby14]

ok so heres my code so far:

public class simpleString
{
private char[] theLetters;
public simpleString (String tester) {
theLetters = new char[tester.length()];
}
}

I'm trying to create a constructor which takes an argument of type String. It should create an array of char which is the same size as the argument in the constructor. I think i've done this correctly. What i need to do now is copy the letters of the argument and put them in the array one at a time, in order.

Completely stuck here so any help and explanation is much appreciated :D

[Fubarable]

The easiest way is to simply have theLetters = tester.toCharArray()

[doWhile]

Scour the API for String
String (Java Platform SE 6)
There are several methods you can use the get the char array of a String (search for the methods that return or accept a character array)
Edit: too late again

[Fubarable]

Scour the API for String
String (Java Platform SE 6)
There are several methods you can use the get the char array of a String (search for the methods that return or accept a character array)
Edit: too late again

Sorry, and your way (referring him to the API) was better than mine.

But then again, I wonder if as part of this assignment he is supposed to write his own code to do this. If so, the original poster should investigate using a for loop.

[walsby14]

Sorry, and your way (referring him to the API) was better than mine.

But then again, I wonder if as part of this assignment he is supposed to write his own code to do this. If so, the original poster should investigate using a for loop.

Yes i think i have to use a for loop to get each character and put it in the array.

[Fubarable]

Yes i think i have to use a for loop to get each character and put it in the array.

Then by all means give it a go. If you get stuck with the attempt, show us what you've tried and any error messages that you might get. Have a look at example for loops to see how to set this up correctly.

[walsby14]

Then by all means give it a go. If you get stuck with the attempt, show us what you've tried and any error messages that you might get. Have a look at example for loops to see how to set this up correctly.

Right I've had a look and this has really got me stumped, i checked the link you guys sent me and i think i need to use the charAt or something but i really can't see how i set it up in a for loop, i now the structure of the for loop but i just can't think how to do it :(

[Fubarable]

Right I've had a look and this has really got me stumped, i checked the link you guys sent me and i think i need to use the charAt or something but i really can't see how i set it up in a for loop, i now the structure of the for loop but i just can't think how to do it :(

We could whip up a solution in 3 seconds, but then you wouldn't learn anything, and half of learning to program is getting through this initial struggle, learning how to think for your self. If you know the structure of a for, then please at least give it a try. You're not going to break your computer by experimenting.

[walsby14]

We could whip up a solution in 3 seconds, but then you wouldn't learn anything, and half of learning to program is getting through this initial struggle, learning how to think for your self. If you know the structure of a for, then please at least give it a try. You're not going to break your computer by experimenting.

ok so this is what I've gone for:

private char[] theLetters;
public simpleString (String tester) {
theLetters = new char[tester.length()];
for (int i = 0; i < tester.length(); i++) {
char[]charAt;

when i run it however it comes up with an incredibly long error message.

[JosAH]

Throw away that method (it doesn't even compile) and read the API documentatio for the String class; it has a method that can produce an array of chars that contain the chars from the String (and it works ;-)

kind regards,

Jos

[Tolls]

But as said earlier, it appears they are supposed to use a loop (ie using the inbuilt method is a 'cheat').

[JosAH]

But as said earlier, it appears they are supposed to use a loop (ie using the inbuilt method is a 'cheat').

But, but, but ... that method also uses a loop so the OP's program also uses a loop, just not its own ;-)

kind regards,

Jos

[Tolls]

You know that and I know that.
Got to learn this stuff somehow I suppose...