Can Anyone Convert this to Coding..

Question

Hi..new to programming. I was just asking a huge favour. Can anyone convert the following sets of instructions to code. I really am struggling in java lately...thanks if anyone has done it for me.
1. read each line from a buffered reader and create a string of the whole file with '\n' and everything.
2. tokenize each line and then each element to determine the dimensions of the grid.
3. create the grid using those dimensions.
4. reinitialize the tokenizers.
5. go through each element assigning it to the proper position on the grid.
6. return the grid

Answer 1

Well lets take these requirements one at a time.
1. read each line from a buffered reader and create a string of the whole file with '\n' and everything.
You are reading the file line by line.
But you are not "creating a string of the whole file with '\n' and everything".
The simple way to do that is to add it line by line
String wholeFile = "";
wholeFile = wholeFile + line + "\n";
The better way would be to use a java.lang.StringBuffer, or a java.io.StringWriter object.
public static String readFile(String layoutFileName) throws IO Exception{
2. tokenize each line and then each element to determine the dimensions of the grid.
You kind of have this already:
StringTokenizer b = new StringTokenizer (fileContents, "\n");
each time you call nextToken() it will return one line.
To split the line:
StringTokenizer colTokens = new StringTokenizer(line);
3. create the grid using those dimensions.
4. reinitialize the tokenizers.
5. go through each element assigning it to the proper position on the grid.
a[row][col] = ??????
6. return the grid
public static int[][] readGridFromString(String fileContents){
so your program would be along the lines of...
String fileContents = readFile(fileName);
int[][] grid = readGridFromString(fileContents);
What is it that separates the tokens on each individual line? Spaces?
Hope this helps some,
evnafets