[update] typo

brianway · brianway · commit 87d3e916e218 · 2018-09-28T22:10:54.000+08:00
diff --git a/java-io/src/main/java/com/brianway/learning/java/io/DirList.java b/java-io/src/main/java/com/brianway/learning/java/io/DirList.java
@@ -24,6 +24,8 @@ public boolean accept(File dir, String name) {
                 }
             });
         }
+
+        if (list == null) return;
         Arrays.sort(list, String.CASE_INSENSITIVE_ORDER);
         for (String dirItem : list) {
             System.out.println(dirItem);
diff --git a/java-io/src/main/java/com/brianway/learning/java/io/TextFile.java b/java-io/src/main/java/com/brianway/learning/java/io/TextFile.java
@@ -94,7 +94,7 @@ public static void main(String[] args) {
         TextFile text = new TextFile(parent + "/text.txt");
         text.write(parent + "test2.txt");
         // Break into unique sorted list of words:
-        TreeSet<String> words = new TreeSet<String>(
+        TreeSet<String> words = new TreeSet<>(
                 new TextFile(inFileName, "\\W+"));
         // Display the capitalized words:
         System.out.println(words.headSet("a"));

Original file line number	Diff line number	Diff line change
`@@ -24,6 +24,8 @@ public boolean accept(File dir, String name) {`
`24`	`24`	`}`
`25`	`25`	`});`
`26`	`26`	`}`
	`27`	`+`
	`28`	`+ if (list == null) return;`
`27`	`29`	`Arrays.sort(list, String.CASE_INSENSITIVE_ORDER);`
`28`	`30`	`for (String dirItem : list) {`
`29`	`31`	`System.out.println(dirItem);`