java; converting strings to char into an array

xemous · 03-24-2006, 05:54 AM

Hi, I'm looking for direction on converting a string into a series of chars and entering those chars into an array.

Or, entering data using Scanner that will take each char from the string and input it into its own array; example:

Hello Everyone

[H][e][l][l][o][ ][E][v][e][r][y][o][n][e]

Instead of

[Hello Everyone][ ][ ]...[ ][ ]

But it seems the Scanner class doesn't have an method for just accepting chars, and the System.in.read casting down to char's requires [enter] for each char.

So I'm looking for a way to type out a sentance, and get each character into an array, instead of the entire sentance.

jlliagre · 03-24-2006, 06:30 AM

String.toCharArray()

xemous · 03-25-2006, 03:37 AM

How do you use String.toCharArray() to enter data into a multidim array

I can convert a string to an array of char if its a single array char[] chars = string.toCharArray();

but once I try it with a multidim array I get a compile error.

Flesym · 03-25-2006, 04:25 AM

Is there anything that bars you from just "looping" through the input and building up your array char by char?

xemous · 03-25-2006, 07:14 AM

-removed-

my solution works

xhi · 03-25-2006, 08:40 AM

this may help some.. the orgs string array is just meant to simulate input..

Code:

    String[] orgs= {"This is a string", 
    	            "This is a string2", 
    	            "this is another string", 
    	            "and another"};

    ///----------
    char[][] mdArray = new char[orgs.length][];
    for(int i=0; i<orgs.length; ++i) 
        mdArray[i] = orgs[i].toCharArray();
    ///-----------
    	
    for(int i=0; i<mdArray.length; ++i)			
        for(int j=0; j<mdArray[i].length; ++j)
            System.out.println("["+i+"]["+j+"] == " + mdArray[i][j]);

this is pretty common in ajva.. i think the term for this sort of array is 'jagged edge array'..

id reccommend you should check out the containers that java provides such as arraylist.. that would give much more flexibility..