alejandrolechuga · May 17, 2019 04:24 · May 17, 2019
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,16 @@
+class Main {
+  public static void main(String[] args) {
+    Main.func("Hello world!");
+  }
+
+	public static void func(String str) {
+    String output = "";
+    for (int i = 0; i < str.length(); i++) {
+      char character = str.charAt(i);
+      if (output.indexOf(character) == -1){
+        output += character;
+      }
+    }
+    System.out.println(output);
+	}
+}