Hey guys, I need help with my homework. I'm super new to coding on my own as you can see and I need to create a character counter using an array, in just this one method.

public int[] letterCounts(String s) {
		int count = 0;
		int[] array= new int [27];
		for(int i= 0; i < s.length(); i++){


		return array;

So yeah, I'm stuck and I don't know what to do next. With only this code, the test for "" comes out as a pass but tests with actual strings come out as failed because the array entries are 0. And according to my notes, apparently I need an else statement after the if and I need to implement Characters.toLowerCase for some reason. Thanks a lot guys.

Oh and here's one of the tests

	public void test02() {
		String s = "Baaa!";
		LetterCounter lc = new LetterCounter();
		int [] expected = new int[27];
		expected[0] = 3;
		expected[1] = 1;
		expected[26] = 1;
		int [] actual = lc.letterCounts(s);
		String result = arraysAreTheSame(s,expected,actual);
		assertTrue(result, result.length()==0);

Edited by ChunkyGerbil: n/a

6 Years
Discussion Span
Last Post by teo236

Well, that helps with the toLowerCase I guess, but now I need help on the rest haha. Thanks for the link, appreciate it.


this method does everything for you:
- it searches every character if it is a "letter" (character) that's between 'a' and 'z', 'A' and 'Z', or '0' and '9'. (check ASCII code for help)
- if it is, it save them in another string that is returned.
The string returned has the alphanumeric characters. You can count the number of characters with .length() and thats it.

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