Hi I have the array below, I need to copy the contents into another single dimensional array but only the first row e.g. 0 and 1
String data[][] = new String[][]
{
{"0", "1", "2", "3", "4"},
{"1", "1", "2", "3", "4"}
}
The above code is an example of how I have set my array, I just need the first row but for every colum
I have tried:
for (int r = 0; r < data.length; r++)
{
codes = new String[] {data[r][0]};
}
But that doesnt work, any ideas? Thanks
Try this:
String[] codes = new String[data.length];
for (int r = 0; r < data.length; r++) {
codes[r] = data[r][0];
}
That should work
Or try:
String[] codes = new String[data.length];
int i=0;
for(String[] strings : data)
{
codes[i++]=strings[0];
}
Although honestly, since foreach code creates a counter, you may be better off using the type of loop that goatlinks showed.
The data contained in data[r][0] is a String. Not a String[] (Array of Strings).
What you want to do: create an array that has the same size as you have columns. String[] codes = new String[data.lenght] and then assign the [r][0] element of data to the r-th element of your newly created array: codes[r] = data[r][0]
