Data commit

Task/Take-notes-on-the-command-line/Java/take-notes-on-the-command-line.java

@@ -0,0 +1,21 @@
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Date;
+
+public class TakeNotes {
+    public static void main(String[] args) throws IOException {
+        if (args.length > 0) {
+            PrintStream ps = new PrintStream(new FileOutputStream("notes.txt", true));
+            ps.println(new Date());
+            ps.print("\t" + args[0]);
+            for (int i = 1; i < args.length; i++)
+                ps.print(" " + args[i]);
+            ps.println();
+            ps.close();
+        } else {
+            FileChannel fc = new FileInputStream("notes.txt").getChannel();
+            fc.transferTo(0, fc.size(), Channels.newChannel(System.out));
+            fc.close();
+        }
+    }
+}