Initial data commit

Task/FASTA-format/Java/fasta-format-2.java

@@ -0,0 +1,44 @@
+public static void main(String[] args) throws IOException {
+    List<FASTA> fastas = readFile("fastas.txt");
+    for (FASTA fasta : fastas)
+        System.out.println(fasta);
+}
+
+static List<FASTA> readFile(String path) throws IOException {
+    try (BufferedReader reader = new BufferedReader(new FileReader(path))) {
+        List<FASTA> list = new ArrayList<>();
+        StringBuilder lines = null;
+        String newline = System.lineSeparator();
+        String line;
+        while ((line = reader.readLine()) != null) {
+            if (line.startsWith(">")) {
+                if (lines != null)
+                    list.add(parseFASTA(lines.toString()));
+                lines = new StringBuilder();
+                lines.append(line).append(newline);
+            } else {
+                lines.append(line);
+            }
+        }
+        list.add(parseFASTA(lines.toString()));
+        return list;
+    }
+}
+
+static FASTA parseFASTA(String string) {
+    String description;
+    char[] sequence;
+    int indexOf = string.indexOf(System.lineSeparator());
+    description = string.substring(1, indexOf);
+    /* using 'stripLeading' will remove any additional line-separators */
+    sequence = string.substring(indexOf + 1).stripLeading().toCharArray();
+    return new FASTA(description, sequence);
+}
+
+/* using a 'char' array seems more logical */
+record FASTA(String description, char[] sequence) {
+    @Override
+    public String toString() {
+        return "%s: %s".formatted(description, new String(sequence));
+    }
+}