Changeset 30671 in osm for applications/editors/josm/plugins/CommandLine/src/CommandLine/History.java

Timestamp:

2014-09-23T12:02:21+02:00 (12 years ago)

Author:

donvip

Message:

[josm_commandline] code cleanup

File:

• applications/editors/josm/plugins/CommandLine/src/CommandLine/History.java (modified) (2 diffs)

applications/editors/josm/plugins/CommandLine/src/CommandLine/History.java

@@ -1 +1 @@
 /*
  *      History.java
- *      
+ *
  *      Copyright 2010 Hind <foxhind@gmail.com>
- *      
+ *
  */
- 
+
 package CommandLine;
 
@@ -11 +11 @@
 
 public class History {
-        private LinkedList<String> historyList;
-        private int maxLen;
-        private int num;
-        
-        public History(int len) {
-                num = 0;
-                maxLen = len;
-                historyList = new LinkedList<String>();
-        }
-        
-        public void addItem(String item) {
-                if (!item.equals("")) {
-                        String prevItem = historyList.peekFirst();
-                        if (prevItem == null) {
-                                historyList.addFirst(item);
-                        }
-                        else {
-                                if (!prevItem.equalsIgnoreCase(item))
-                                        historyList.addFirst(item);
-                        }
-                        if (historyList.size() > maxLen) {
-                                historyList.removeLast();
-                        }
-                }
-                num = -1;
-        }
-        
-        public String getPrevItem() {
-                num += 1;
-                if (num >= historyList.size()) {
-                        num = historyList.size() - 1;
-                }
-                if (num < 0) {
-                        num = -1;
-                        return "";
-                }
-                return historyList.get(num);
-        }
-        
-        public String getLastItem() {
-                if (historyList.size() > 0)
-                        return historyList.get(0);
-                return "";
-        }
+    private final LinkedList<String> historyList;
+    private final int maxLen;
+    private int num;
 
-        public String getNextItem() {
-                num -= 1;
-                if (num < 0) {
-                        num = -1;
-                        return "";
-                }
-                return historyList.get(num);
-        }
+    public History(int len) {
+        num = 0;
+        maxLen = len;
+        historyList = new LinkedList<>();
+    }
+
+    public void addItem(String item) {
+        if (!item.equals("")) {
+            String prevItem = historyList.peekFirst();
+            if (prevItem == null) {
+                historyList.addFirst(item);
+            }
+            else {
+                if (!prevItem.equalsIgnoreCase(item))
+                    historyList.addFirst(item);
+            }
+            if (historyList.size() > maxLen) {
+                historyList.removeLast();
+            }
+        }
+        num = -1;
+    }
+
+    public String getPrevItem() {
+        num += 1;
+        if (num >= historyList.size()) {
+            num = historyList.size() - 1;
+        }
+        if (num < 0) {
+            num = -1;
+            return "";
+        }
+        return historyList.get(num);
+    }
+
+    public String getLastItem() {
+        if (historyList.size() > 0)
+            return historyList.get(0);
+        return "";
+    }
+
+    public String getNextItem() {
+        num -= 1;
+        if (num < 0) {
+            num = -1;
+            return "";
+        }
+        return historyList.get(num);
+    }
 }