How to add multiple characters to one index in a Char Array?
Clash Royale CLAN TAG#URR8PPP
How to add multiple characters to one index in a Char Array?
Im currently trying to create a function where my input is a string such as "AABBCCDDEE" and the function outputs a String array "AA""BB""CC" and so on.
public static char stringSplitter(final String input) {
String strarray = new String[input.length()];
if (input == null)
return null;
char chrarray = input.toCharArray();
char outputarray = new char[input.length()];
int j = 0;
for (int i = 0; i < chrarray.length; i++)
char chr = chrarray[i];
System.out.print(chr);
outputarray[j] = chrarray[i]; //here i need to find a way to add the characters to the index at j if the preceding characters are equal
if (i + 1 < input.length() && chrarray[i + 1] != chr)
j++;
outputarray[j] = chrarray[i + 1];
System.out.println(" ");
Yes, and each run should be in a seperate index
– air bmx
2 mins ago
You realize you can't store *multiple* characters at a single index, right? You'll need to use a two dimensional char array, a string, or something else.
– markspace
1 min ago
1 Answer
1
Arrays are fixed-length, so you can't do this with an array unless you allocate one with sufficient extra room up-front (which would require a pass through the string to find out how much extra room you needed).
Instead, consider using a StringBuilder for the output, which you can convert into a char array when you're done.
StringBuilder
char
How do you convert from StringBuilder to chararray. Is there a .toCharArray method?
– air bmx
20 secs ago
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So you just want to find "runs?" Sequences of contiguous characters that are the same?
– markspace
3 mins ago