typo

data/1.Java初阶/10.类和接口/3.接口/interface.md

@@ -62,11 +62,11 @@ public class One implements Parsec<String, String>{
 
 ```java
 public interface Parsec<E, T> {
-    public Parsec<E, T> then(Parsec<E, T> psc) {
+    default Parsec<E, T> then(Parsec<E, T> psc) {
         return state -> {
             this.parse(state);
-            return psc.parse(state)
-        }
+            return psc.parse(state);
+        };
     }
 }
 ```
\ No newline at end of file